Posted on
12
Aug 2021

GMAT Probability Problems – How to Tackle Them & What Mistakes to Avoid

By: Apex GMAT
Contributor: Ilia Dobrev
Date: August 12, 2021

The concept of probability questions is often pretty straightforward to understand, but when it comes to its application in the GMAT test it may trip even the strongest mathematicians.

Naturally, the place to find such types of problems is the Quantitative section of the exam, which is regarded as the best predictor of academic and career success by many of the most prestigious business schools out there – Stanford, Wharton, Harvard, Yale, INSEAD, Kellogg, and more. The simple concept of probability problems can be a rather challenging one because such questions appear more frequently as high-difficulty questions instead of low- or even medium-difficulty questions. This is why this article is designed to help test-takers who are pursuing a competitive GMAT score tackle the hazardous pitfalls that GMAT probability problems often create.

GMAT Probability – Fundamental Rules & Formulas

It is not a secret that the Quantitative section of the GMAT test requires you to know just the basic, high-school-level probability rules to carry out each operation of the practical solution path. The main prerequisite for success is mastering the Probability formula:
Probability = number of desired outcomes / total number of possible outcomes

 Probability P  = number of desired outcomes total number of possible outcomes

We can take one fair coin to demonstrate a simple example. Imagine you would like to find the probability of getting a tail. Flipping the coin can get you two possible comes – a tail or a head. However, you desire a specific result – getting only a tail – which can happen only one time. Therefore, the probability of getting a tail is the number of desired outcomes divided by the number of total possible outcomes, which is ½. Developing a good sense of the fundamental logic of how probability works is central to managing more events occurring in a more complex context.

Alternatively, as all probabilities add up to 1, the probability of an event not happening is 1 minus the probability of this event occurring. For example, 1 – ½ equals the chance of not flipping a tail.

Dependent  Events vs. Independent Events

On the GMAT exam, you will often be asked to find the probability of several events that happen either simultaneously or at different points in time. A distinction you must take under consideration is exactly what type of event you are exploring.

Dependent events or, in other words, disjoint events, are two or more events with a probability of simultaneous occurrence equalling zero. That is, it is absolutely impossible to have them both happen at the same time. The events of flipping either a tail or a head out of one single fair coin are disjoint.

If you are asked to find a common probability of two or more disjoint events, then you should consider the following formula:

 Probability P of events A and B   = (Probability of A) + (Probability of B)

Therefore, the probability of flipping one coin twice and getting two tails is ½ + ½.

If events A and B are not disjointed, meaning that the desired result can be in a combination between A and B, then we have to subtract the intersect part between the events in order to not count it twice:

 Probability P of events A and B   = P(A) + P(B) – Probability (A and B)

Independent events or discrete events are two or more events that do not have any effect on each other. In other words, knowing about the outcome of one event gives absolutely no information about how the other event will turn out. For example, if you roll not one but two coins, then the outcome of each event is independent of the other one. The formula, in this case, is the following:

 Probability P of events A and B   = (Probability of A) x (Probability of B)
How to approach GMAT probability problems

In the GMAT quantitative section, you will see probability incorporated into data sufficiency questions and even problems that do not have any numbers in their context. This can make it challenging for the test taker to determine what type of events he or she is presented with.
One trick you can use to approach such GMAT problems is to search for “buzzwords” that will signal out this valuable information.

• OR | If the question uses the word “or” to distinguish between the probabilities of two events, then they are dependent – meaning that they cannot happen independently of one another. In this scenario, you will need to find the sum of the two (or more) probabilities.
• AND | If the question uses the word “and” to distinguish between the probabilities of two events, then they are independent – meaning their occurrences have no influence on one another. In this case, you need to multiply the probabilities of the individual events to find the answer.

Additionally, you can draw visual representations of the events to help you determine if you should include or exclude the intersect. This is especially useful in GMAT questions asking about greatest probability and minimum probability.

If you experience difficulties while prepping, keep in mind that Apex’s GMAT instructors have not only mastered all probability and quantitative concepts, but also have vast experience tutoring clients from all over the world to 700+ scores on the exam. Private GMAT tutoring and tailored customized GMAT curriculum are ideal for gaining more test confidence and understanding the underlying purpose of each question, which might be the bridge between your future GMAT score and your desired business school admissions.

Posted on
11
Aug 2021

GMAT Markup Problem – GMAT Data Sufficiency

Hey guys, today we’re going to take a look at a typically characteristic data sufficiency problem that gives us a relationship, and then asks us if we have enough to compute the final value of that relationship. There’s an algebraic solution path here, where they give us the equation and we need to see if we have all but one of the variables, that final variable being the one that they’re asking for. We can also do this via parts, scenario, and graphically, and we’ll take a look at all those as well.

GMAT Markup Problem Introduction

This problem describes to us the relationship between the selling price, the cost, and the markup. And notice that, while we’re going to sketch it out here, the actual relationship doesn’t matter to us – all that matters is that if they’re asking for one term in terms of the rest if we have the other terms, that’ll be enough.

Algebraically we have selling price S equals the cost C plus the markup M. So this is giving us the markup in, let’s say dollar terms, whereas we might also set this up as selling price equals cost times one plus the markup percentage. And here we just have that notational shift. So, what we’re looking for, if we want to know the markup relative to the selling price, is an understanding of it either relative to the selling price or relative to the cost. That is, these two things are associated and the markup, when associated with the cost, gives us a ratio. Where the markup, when associated with the selling price, is a fraction. And if you’ll remember notationally these things are expressed differently, but conceptually there’s the same math behind it.

Statement 1

Number one gives us in percentage terms the mark up compared to the cost. So, here we can see it as 25% more and this is where it ties into that second version of the algebraic one we just looked at. The cost we can break up into four parts of 25% so that when we add the markup that’s a fifth part. Therefore, the markup comprises one-fifth or 20% of the selling price.

Statement 2

Number two provides us a concrete selling price but doesn’t tell us anything about the markup or the mix of cost versus markup as a percentage of the total selling price. Two is insufficient on its own, and as we’ve seen in many other data sufficiency problems, what they’re trying to do here is fool us into thinking we need a specific price, a discrete value to get sufficiency. When the question stem is asking us only for a relative value and when we’re being asked for a relative value, a percentage, a fraction, a ratio be on the lookout for fooling yourself into thinking that you need an anchor point a specific discrete value.

I hope this helps. If you enjoyed this GMAT Markup Problem, try your hand at this Triangle DS Problem.

Posted on
10
Aug 2021

Taking the GMAT Exam in Seattle

1. Who administers the GMAT test?
2. What does the test center look like?
3. Where are the test centers located?
4. Test center holidays
5. Top MBA programs in the area
6. Tips
7. Test Day FAQs

About ¾ of the way through your extensive GMAT prep you should begin to start planning your test day, including scheduling the test, preparing your trip to the test center, and even pre-visiting the test center so that you know exactly where it is. This guide is here to offer you all the required information related to taking the GMAT in Seattle

Pearson Professional Centers – administers the GMAT and EA exam on behalf of the GMAC. To find out more about the Pearson Professional test centers visit https://www.pearson.com/us/.

What does the test center look like?

The location will include individual testing areas for each test taker with a separation screen between each test-taker.

Where are the test centers in Seattle?

These are the top locations where test-takers generally had the best experience:

Pearson Professional Centers-Seattle WA

100 West Harrison Street
Suite 120
West Harrison Plaza South Tower
Seattle, Washington 98119
United States
Phone: +1 206-285-1037

By car:

From Downtown Seattle (7 minutes):

• Turn left onto Madison St
• Turn right onto Western Ave
• Continue straight to stay on Western Ave
• Turn right onto 1st Ave W
Test-takers’ review:

This test center was rated 4.2 by Google reviewers. They mentioned that they had a great experience, the staff was friendly and professional, there was full-day parking around the building and there were also lovers for everyone to put their things in.

Test Center Holidays

The most popular times for GMAT preparation and test-taking are during the holiday seasons. Be mindful of dates that you will not be able to take the GMAT or EA at any of the test centers mentioned above. Pearson test centers are closed during the following dates:

• 1 Jan – New Year’s Day
• 21 Mar – Human Rights Day
• 10 Apr – Good Friday
• 13 Apr – Family Day
• 27 Apr – Freedom Day
• 1 May – Workers’ Day
• 16 Jun – Youth Day
• 9 Aug – National Women’s Day
• 10 Aug – Public Holiday
• 24 Sep – Heritage Day
• 16 Dec – Day of Reconciliation
• 25 Dec – Christmas Day
• 26 Dec – Day of Goodwill

Top MBA programs in Seattle

• McDonough School of Business- Georgetown University

Tips:

• During the test there will not be complete silence – you will be able to hear noise from other test takers so it is best to prepare for this by studying for the exam in similar scenarios. This can prepare you for any distractions (such as coughing, sneezing, or computer clicking sounds) that might occur while taking your exam.
• Try to spend some time actually prepping in the lobby of the test center weeks/days in advance of your exam date. Since the place will be familiar to you come test day this can help curb test anxiety should you have any.

Test Day FAQs

Here are the top 5 questions that clients ask us about exam day information:

• Are you allowed to listen to music while taking the GMAT exam?

You are not allowed to listen to music while taking the GMAT exam and you are not allowed to wear earphones as well.

• What should I do if I fall sick on the exam day?

If you do not feel well come exam day you will have to make the decision as to whether or not you can take the test and perform at your best. Most people will not be able to do this so it will be best to cancel it. If you do so on the day of the exam you will incur a loss of your full \$250 exam fee. If you cancel the exam 7 days in advance you will be charged a penalty of \$50. If it is the first time that you will sit the exam and you are up for sitting through a 4 hour test, this may be a good opportunity to experience the test as you have the ability to cancel the score right afterwards if you are unhappy with it. Ultimately, it is best to take the GMAT when you are feeling your best as this will result in your optimum test performance.

• What can I bring with me to the test center?

You are allowed in the test center with the following:

• GMAT approved identification
• Appointment confirmation letter or email you received from Pearson VUE
• Prescription eyeglasses
• Light sweater or light non-outerwear jacket
• Comfort items only if they were pre-approved as an accommodation received in advance

Any additional personal belongings that you bring with you such as your cell phone, bag, snacks, and earphones will need to be stored in one of the provided lockers. You may eat your snack during the breaks. Any cell phone use throughout the test time (including breaks) is prohibited.

The test center will provide you with everything that you need in order to take the test including scratch paper and a pencil.

• Should I wear a mask during the exam?

At the test centers above they strongly recommend that you wear a face mask or some type of face-covering in the test center and for the duration of your test to protect yourself and others. Test centers do not provide face masks for candidates.

Please note that if you have any flu-like symptoms upon arrival at the test center, you may be requested to reschedule your exam for another time when you are in full health.

• What can I expect at the test center?

A usual test center is typically quite small. Once you arrive you will have to provide the administrator with the relevant documents and while these are being processed you will be asked to wait in the waiting area. In this area, you can still access all your personal belongings up until you are called into the testing room.

Once in the room, you will be allocated an individual exam station where you will find a computer.

For any questions or comments please reach out to us at www.apexgmat.com.
To speak to an Apex instructor about your GMAT prep, schedule a call HERE.

Posted on
05
Aug 2021

Why is your GMAT Score Important for Prospective Jobs?

By: Apex GMAT
Date: 5th August 2021

Taking the GMAT and getting a 700+ score is not only going to help you pursue your MBA career, it will also facilitate additional professional benefits. Indeed, the GMAT requires far more skills than just the math or verbal skills that are tested, and success can be evidence of an array of capabilities. Read on to find out what GMAT score use in employment is and why more employers are taking candidates’ GMAT scores into account in hiring decisions.

Of course, a high GMAT score primarily makes one stand out from other job applicants. Moreover, it is also a clear and objective indicator of your integrated reasoning abilities, as well as your analytical, verbal, and quantitative reasoning skills. Particularly for those interested in applying for finance, investment, or business-related employment, an excellent GMAT score can be proof of expertise in the aforementioned categories.

At the surface level, a high score in the quant section demonstrates that a candidate can solve and interpret numerical problems. More significantly, it also implies that the applicant can be trusted with complex calculations, extensive financial reports, and other major related tasks. Furthermore, a candidate’s integrated reasoning skills will be seen to be of great professional value, especially when working with a large amount of data from multiple sources. Extrapolating the right takeaways and decision-making points from this wide array of data is a skill highly sought after by employers.

The GMAT’s testing of analytical writing and verbal reasoning skills have implications for a candidate’s professional capabilities. Scores in these sections speak to the applicant’s capacity for critical thinking as well as how clearly and precisely they can express their ideas in written form.

Ultimately, the GMAT score helps employers select their hires based on information gleaned from standardized testing, and not just personal characteristics or experience. This allows for a selection process that is much more comprehensive.

Since the GMAT is a requirement for MBA admission, a high score also indicates that the candidate has been admitted to a prestigious and academically rigorous university. Potential employers perceive such individuals as having a high-quality education from top-notch professors. Many of whom have worked in their industry.

Finally, a candidate with a high GMAT score is also better placed to perform well during a job interview than someone who has never prepared for such a test. By putting his/her critical thinking and verbal reasoning skills into practice, a job candidate with a 700+ score is more likely to excel at answering questions that require the application of analytical and logical skills. Moreover, having taken the GMAT, prospective hires enjoy minimal interview anxiety or stress, because they were trained to manage such issues while preparing for the test. Additionally, they may be exempt from taking company interview tasks due to their performance on the GMAT.

For all these reasons, employers will always value individuals with high GMAT scores, giving them preference over the job seekers with low or no GMAT scores. For more information regarding the GMAT Scoring, GMAT Scoring Demystified is a very insightful article to read.

Posted on
04
Aug 2021

GMAT Abstract Data Sufficiency Problem

Abstract Data Sufficiency Problems & Scenarios

Hi guys! Abstract data sufficiency problems tend to really lend themselves to running scenarios – It doesn’t matter if it’s an abstract inequality or a number theory problem, really anytime you’ve got variables thrown into the question stimulus on a DS problem, scenarios is a good way to go. Now your scenarios can be discrete actual numbers that you throw in there, but you can also leverage rules and have more conceptual-level scenarios. We’re going to take a look at both in this problem.

Problem Introduction

We’re being asked here for the evenness or oddness of n which is an integer. At first blush, we’re going to say, “Well, if we have the evenness or oddness of any expression involving n and n alone, we should be able to backtrack it to n.” If you don’t see that then you might fall into the trap of having to go much more deeply into it and figure out “Well, what if n is this, what if n is that?” But notice here that because we’re dealing with evens and odds there are a set of identities that govern every possible addition, or multiplication, subtraction, or division of evens and odds. So, as long as there’s nothing complicating it the expression itself will be enough.

Statement 1

Taking a look at the introduced information, number one gives us n2 + 1 is odd that means that n2 is even. How do we know without numbers? If n2 + 1 is odd then adjusting it down by one, removing that one, means we’re definitely going to get to an even, because the number line is just even, odd, even, odd, even, odd all the way up. So, we have n2 is even, and only even times even gives us an even. Odd times odd doesn’t, odd times odd gives us an odd.

So, n must be even if the square of it leads us to an even. Notice again, that we don’t need to do any of that, it’s enough just to say we’ve got n in an expression, and we have its evenness and oddness.

Statement 2

Number two works the same way. 3n + 4 is even that’s enough, no more to do, but if we want to we can adjust that 3n – 4 as even down by 4 notches (odd, even, odd, even). So 3n is even and then we know that n divided by 3, that is what is an even divided by 3, will give us n. An even divided by an odd is going to always be an even, for the same reason even times an odd is always going to be an even.

Run some scenarios here, start out with an even number; let’s do 6, 50, and 120. Divide each by 3; 2 (6/3=2), 50 divided by 3 doesn’t work, 40 (120/3=40). So on the two that do work, we get to even numbers. 50 is not allowed to be used as a scenario because we’re told that n – 3 has to be an integer which means, that 3n must also be an integer; that is 3n is a multiple of 3. Since 50 is not a multiple of 3 it’s not a potential 3n. Take a minute with that one, because it’s kind of looking at everything in reverse.

So here we have two different expressions that both give us evenness and oddness, they both work independently. The answer choice is D – each alone is sufficient.

If you enjoyed this problem, try your hand at these Data Sufficiency Problems GMAT Trade Show Problem & Area of a Triangle Problem.

Posted on
03
Aug 2021

How To Keep Your Sanity While Preparing For The GMAT

By: Apex GMAT
Contributor: Nemrout Safarian
Date: 3rd August, 2021

The Hows:
– Taking a GMAT Preparation Course
– Creating an Effective Study Schedule
– Maintaining Connection to Your Support Team
– Resting and Getting Good Sleep
– Celebrating Your Big and Little Achievements

Experiencing too much anxiety over the GMAT Exam might cause a negative impact on your mental health and make it difficult for you to keep your sanity. Moreover, it might even make it more challenging to concentrate when studying and disrupt your sleep schedule. However, with the correct test stress and anxiety busting tactics, as well as an effective studying schedule, your GMAT exam preparation can become much less stressful.

Here are 6 tips that we recommend to make your GMAT exam preparation stress-free and effective.

• Take a GMAT Preparation Course

Everyone’s GMAT story is different. Some people can get a 700 score based on everything they already know, without opening a GMAT book. But, for most students, a preparation course or one on one prep time with a personal GMAT  tutor is necessary for two reasons. First: it puts you in the right direction in terms of exam content, strategies, solution paths, and tactics to tackle problems, by helping you structure a concrete and designated studying plan.

Secondly: it makes you feel much more confident and emotionally calm, as you work with a trustworthy and an experienced professional who knows the ins and outs of the exam and preparation insights. Furthermore, a GMAT tutor can assist you with anything necessary throughout the preparation and testing process. Apex GMAT, for example, offers a complimentary consultation call for interested individuals, looking for structured personalized GMAT preparation.

• Create an Effective Study Schedule

Don’t wait for the perfect time to take the GMAT. This moment may never reveal itself! Life will always throw you curveballs and can end up curtailing your plans. Situations may arise which may interfere with your GMAT preparation as well. During your GMAT prep, you should take the extra effort to harmonize any unexpected situations with your study schedule.

One effective method you could try is to divide your studying schedule into multiple time frames throughout the day so that you can concentrate on preparing in smaller doses rather than studying for 5-7 hours straight and losing your ever so vital focus.

Study the materials during the weekdays and devote some time to practice tests where necessary. Practice test will help you to assess your progress and to understand your main strengths and weaknesses. Beware: don’t overuse practice tests.

At some point, the GMAT will stress you out, making you feel disappointed and frustrated. This is natural! Whether it is an unsatisfactory score on a practice test or the feeling of giving up, the GMAT can make it easy to have an emotional breakdown. However, it is important to be able to take control of your emotions, and have a “never a failure, always a lesson” attitude.

Every time you make a mistake, try to dive deep into that specific concept and figure out why you made that particular mistake. And learn from it. This is exactly how you make progress! Whenever you feel like you can’t go on anymore, remember your goals and aspirations, and that this test is a key to the completion of those. Also keep in mind that taking a break is a good thing, practicing in short timeframes will allow you to improve your skills without feeling overwhelmed.  With the proper frame of mind, you will find yourself studying again in no time.

• Maintain a Connection to Your Support Team

The people you communicate with during your GMAT preparation process are very important and can hugely affect your frame of mind. Try not to isolate yourself too much from them. Spending your whole time in your room focusing on all that GMAT content can lead to burnouts.

Instead, spend time with the people whose presence is pleasing to you, who support and believe in you. This can be your family, your best friends, or the new acquaintance that has no idea what the GMAT even is. Constant communication with the people that you love will positively affect your overall mentality and help you stay engaged and happy when preparing for the test.

• Get Some Rest and Good Sleep

Another essential thing to remember is paying attention to your sleep schedule. Add an extra half an hour to your sleep schedule so that you can give your brain time to wind down for the night. This extra half-hour is crucial, as we frequently overlook the time it takes to get ready for bed, set the alarm clock, and so on. Getting 8 hours of sleep a night while preparing for the GMAT is vital.

Additionally, be cautious about what you are eating or drinking as an unhealthy diet can negatively affect your sleep schedule. Although the effects of caffeine may differ from person to person, try to avoid all sources of caffeine after 3 p.m. and modify accordingly. Aside from coffee, caffeine is found in a variety of foods and drinks, including tea, chocolate, and carbonated beverages. However, there are GMAT test prep benefits to caffeine products when consumed thoughtfully.

• Celebrate Your Big and Little Achievements

Your GMAT preparation process aims to help you reach your goals! Reward yourself a little – take a moment and celebrate little achievements. Whether it is progress in practice test scores or a complicated Math concept that you have finally mastered. It will help you feel more positive and confident about your overall knowledge and skills.

Be brave enough to challenge yourself with tougher concepts after. As you progress down your GMAT journey, be sure to celebrate  your short- and long-term accomplishments. These moments of celebration will undoubtedly assist you in keeping yourself at the top of your game and stress free.

Good luck studying and remember to believe in yourself!

Posted on
29
Jul 2021

Taking the GMAT Exam in Cape Town

1. Who administers the GMAT test?
2. What does the test center look like?
3. Where are the test centers located?
4. Test center holidays
5. Top MBA programs in the area
6. Tips
7. Test Day FAQs

About ¾ of the way through your extensive GMAT prep you should begin to start planning your test day, including scheduling the test, preparing your trip to the test center, and even pre-visiting the test center so that you know exactly where it is. This guide is here to offer you all the required information related to taking the GMAT in Cape Town

The GMAT exam is administered in 2 different locations in Cape Town: in a university campus (IBTC Cape Town) and in an educational center in the city (CTU Training Solutions).

What does the test center look like?

The location will include individual testing areas for each test taker with a separation screen between each test-taker.

Where are the test centers in Cape Town?

These are the top locations where test-takers generally had the best experience:

3rd Floor
79 Roeland Street
Cape Town
8001
South Africa

By car:

From City Center (13 minutes):

• Head southeast on Wale St toward Queen Victoria St
• Turn right onto Bureau St
• Slight right onto Spin St
• Turn right onto Plein St
• Turn left onto Roeland St
CTU Training Solutions Cape Town

Claremont
Cape Town
8000
South Africa

By car:

From City Center (14 minutes):

• Get on N2 from Strand St and Newmarket St
• Follow N2 and M3 to Princess Anne Ave/M146/M63 in Rondebosch. Take exit 8 from M3
• Take Klipper Rd and Main Rd/M4 to Hawthorne Rd in Claremont

The most popular times for GMAT preparation and test-taking are during the holiday seasons. Be mindful of dates that you will not be able to take the GMAT or EA at any of the test centers mentioned above. Pearson test centers are closed during the following dates:

• 1 Jan – New Year’s Day
• 21 Mar – Human Rights Day
• 10 Apr – Good Friday
• 13 Apr – Family Day
• 27 Apr – Freedom Day
• 1 May – Workers’ Day
• 16 Jun – Youth Day
• 9 Aug – National Women’s Day
• 10 Aug – Public Holiday
• 24 Sep – Heritage Day
• 16 Dec – Day of Reconciliation
• 25 Dec – Christmas Day
• 26 Dec – Day of Goodwill

Tips:

• During the test there will not be complete silence – you will be able to hear noise from other test takers so it is best to prepare for this by studying for the exam in similar scenarios. This can prepare you for any distractions (such as coughing, sneezing, or computer clicking sounds) that might occur while taking your exam.
• Try to spend some time actually prepping in the lobby of the test center weeks/days in advance of your exam date. Since the place will be familiar to you come test day this can help curb test anxiety should you have any.
• Here is a helpful test day planning guide: Link to guide
• Find a test day checklist here: link to checklist

Test Day FAQs

Here are the top 5 questions that clients ask us about exam day information:

• Are you allowed to listen to music while taking the GMAT exam?

You are not allowed to listen to music while taking the GMAT exam and you are not allowed to wear earphones as well.

• What should I do if I fall sick on the exam day?

If you do not feel well come exam day you will have to make the decision as to whether or not you can take the test and perform at your best. Most people will not be able to do this so it will be best to cancel it. If you do so on the day of the exam you will incur a loss of your full \$250 exam fee. If you cancel the exam 7 days in advance you will be charged a penalty of \$50. If it is the first time that you will sit the exam and you are up for sitting through a 4 hour test, this may be a good opportunity to experience the test as you have the ability to cancel the score right afterwards if you are unhappy with it. Ultimately, it is best to take the GMAT when you are feeling your best as this will result in your optimum test performance.

• What can I bring with me to the test center?

You are allowed in the test center with the following:

• GMAT approved identification
• Appointment confirmation letter or email you received from Pearson VUE
• Prescription eyeglasses
• Light sweater or light non-outerwear jacket
• Comfort items only if they were pre-approved as an accommodation received in advance

Any additional personal belongings that you bring with you such as your cell phone, bag, snacks, and earphones will need to be stored in one of the provided lockers. You may eat your snack during the breaks. Any cell phone use throughout the test time (including breaks) is prohibited.

The test center will provide you with everything that you need in order to take the test including scratch paper and a pencil.

• Should I wear a mask during the exam?

At the test centers above they strongly recommend that you wear a face mask or some type of face-covering in the test center and for the duration of your test to protect yourself and others. Test centers do not provide face masks for candidates.

Please note that if you have any flu-like symptoms upon arrival at the test center, you may be requested to reschedule your exam for another time when you are in full health.

• What can I expect at the test center?

A usual test center is typically quite small. Once you arrive you will have to provide the administrator with the relevant documents and while these are being processed you will be asked to wait in the waiting area. In this area, you can still access all your personal belongings up until you are called into the testing room.

Once in the room, you will be allocated an individual exam station where you will find a computer.

For any questions or comments please reach out to us at www.apexgmat.com.
To speak to an Apex instructor about your GMAT prep, schedule a call HERE.

Posted on
28
Jul 2021

GMAT Trade Show Problem – Data Sufficiency

Today we’re going to take a look at the Trade Show Problem and this is a GMAT Data Sufficiency problem with averages as the focal point. But really the concept of average is distracting from this problem. So, if we take a look at the question stimulus, we want to figure out what we need, but we need to synthesize some of the information there to understand what we know.

We’re being asked whether or not it gets above a certain threshold an average of 90, and over six days that’s going to be over a total of 540 points. Notice how I did it mathematically, you can represent it graphically as a rectangle, but 90 times 6 is that 540 points. We know though that all of our days at a minimum are 80 which means we can build up from that piece of knowledge. We have 80 x 6 = 480 points and we want to know if we have more or less than 60 points above that minimum that we’re already working with that’s what we need.

Solving the GMAT Problem

Ways we might get it include any number of slices and dices for the performance of the rest of the days and the difficulty of this problem in large part will be dependent on how convoluted the GMAT gives us the introduced information on number one and two.

When we look at number one, we’re told that the final four days average out to a hundred. Once again, like with other average problems, each of the individual four days the performance doesn’t matter. We can just say each is exactly 100 and make that assumption, which means each is 20 over – we’re 80 points over the mean. Because we want to know whether we are more or less than 60 points, this knowledge that we’re 100 points tells us “Yes, definitively. We are over that average of 90, we’re over that surplus of 60 points.” So, number one is sufficient.

Number two gives us the opposite information, it talks about the minimum, and, in aggregate, that doesn’t let us know directly whether or not we make those 60 points. That is it’s possible but it’s also possible that we don’t, because we’re dealing with a minimum rather than a maximum or rather we’re dealing with information that can lie on either side of what we need. Therefore 2 is insufficient. Our answer here is A.

I hope that was useful. GMAT nation stay strong, keep averaging. You guys got this! I believe in you. If you want to test your GMAT Data Sufficiency skills, check out the Science Fair problem.

Posted on
27
Jul 2021

GMAT Calculator & Mental Math – All You Need To Know

Author: Apex GMAT
Contributor: Ilia Dobrev
Date: 27 July, 2021

Are you allowed to use a calculator on the GMAT? While this may seem as a pretty straightforward question to answer, it does deserve a separate blog post as it hides details that are vital for achieving a top GMAT score not only on the quantitative section, but on the exam as a whole.

Well, the answer is both Yes and No. This article aims to examine the different scenarios where you are allowed to use such a device and how you can make full use of its potential. But, if you are used to doing math with a calculator, do not worry as we have compiled a list of some mental math techniques that you can use to your advantage and even save much important time while still being spot-on with your answers.

Calculator on the GMAT | Explained

• You are not allowed to bring your own calculator to the GMAT exam.
According to the GMAC, no personal items are allowed in the exam room of any of the certified test centers.
• You cannot use a calculator on the Quantitative section of the GMAT.
Despite the fact that we are so used to using calculators to help us with arithmetic operations, you should not feel intimidated that you are not allowed to use any type of calculator on the GMAT Quantitative section. However, you will be provided with a blank canvas by the proctor of the exam where you will have plenty of space to practice to manually compute any calculations, if needed.

You should not worry as the GMAT exam is not designed to test you on complicated mathematical operations or complex calculations. Instead, the quant section draws from secondary-level math skills like basic algebra and geometry, which are mastered in high school, to test other kinds of abilities like critical thinking, logical reasoning, and problem-solving. In fact, the majority of the Quant questions can (and should) be answered without any calculations beyond estimation. A typical example of how you can use mental math to get to the right answer while saving precious time on the GMAT is the Movie Night combinatorics problem. Another type of common GMAT quant questions are data sufficiency problems, which are also more about reasoning than  calculations. You’ll only need to do basic calculations and can rely on estimation for anything more complicated. If you have to do the math, the GMAC usually keeps the numbers simple and avoids decimals. When you see large numbers or complex fractions, then it’s a good bet that there’s an easier solution path to embark on other than calculating.

Surprisingly or not, a calculator will be provided for use during the GMAT Integrated Reasoning section of the test. This GMAT calculator has the standard basic functions, CE (clear entry) button, C (clear) button, an sqrt function, a % (percentage) button, and a 1/x button that calculates the reciprocal of the entry currently on the screen. Also, there is a row with the standard memory functions

• MS (memory store) stores the current entry in the calculator’s memory for subsequent use.
• MR (memory recall) displays the latest number stored in the calculator’s memory so that it can be used for the next calculations.
• M+ (memory addition) adds the current entry to the value that is currently stored in the calculator’s memory. This button is helpful when you need to add a long series of numbers and don’t want to retype each one.
• MC (memory clear) erases whatever is in the current memory. You should click this button before every new calculation scenario.

Survival Tips & Tricks

Do not overuse the IR calculator.

While you are provided with a basic GMAT calculator during the Integrated Reasoning section, you might not want to use it too often as you’ll waste more time than you’ll save. You can also apply the solution paths you are using in the Quant section to some problems in the Integrated Reasoning section.

Constantly practice Mental Math operations.

A huge morale boost is that mental math operations are easy to learn with some practice. You can add, multiply, subtract, and divide when you pay bills, check out at the grocery store, calculate a tip, etc. without using a calculator.

Make accurate estimations

The key to saving a considerable amount of time on the GMAT exam is efficiency in estimations. Transform numbers to less unwieldy figures like 0 or 5 for the purpose of calculations. You can then browse the answer choices to see which is closest to your preliminary estimate.

Do not use a calculator when you are prepping for the GMAT quant section.

This is a great way to practice mental math operations outside the daily life operations. The test setting and quant context will let you get used to this environment so that you know what to expect on test day.

Familiarize yourself with a basic GMAT calculator and do use its Memory functions.

As this will be your only technical aid during the GMAT Integrated Reasoning section, you’d better spend some time making the most out of it. Especially when you are pressed by time, memorizing calculated values for further operations in the calculator’s memory can be crucial for staying on track with a healthy exam pace.

Guide yourself by looking at the answer choices.

Looking at the answer choices can immediately permit you to eliminate a couple of options. Even if you are pushed by time, you can easily make a more educated decision depending on your reasoning that will boost the chances of picking the correct answer.

Do not freak out if you see large numbers.

Remember that the people who stand behind the GMAT are aware that they are designing questions that are supposed to be answered without using a calculator. This also keeps the arithmetic from being too difficult and gives you the opportunity to apply a more straightforward approach.

Posted on
22
Jul 2021

GMAT Quant Syllabus 2021-2022

Author: Apex GMAT
Contributor: Altea Sollulari
Date: 22 July, 2021

We know what you’re thinking: math is a scary subject and not everyone can excel at it. And now with the GMAT the stakes are much higher, especially because there is a whole section dedicated to math that you need to prepare for in order to guarantee a good score. There is good news though, the GMAT is not actually testing your math skills, but rather your creative problem solving skills through math questions. Furthermore, the GMAT only requires that you have sound knowledge of high school level mathematics. So, you just need to practice your fundamentals and learn how to use them to solve specific GMAT problems and find solution paths that work to your advantage.

The Quantitative Reasoning section on the GMAT contains a total of 31 questions, and you are given 62 minutes to complete all of them. This gives you just 2 minutes to solve each question, so in most cases, the regular way of solving math equations that you were taught in high school will not cut it. So finding the optimal problem solving process for each question type is going to be pivotal to your success in this section. This can seem a daunting start, so our expert Apex GMAT instructors recommend that you start your quant section prep with a review of the types of GMAT questions asked in the test and math fundamentals if you have not been using high school math in your day to day life.

What types of questions will you find in the GMAT quant?

There are 2 main types of questions you should look out for when preparing to take the GMAT exam:

Data Sufficiency Questions

For this type of GMAT question, you don’t generally need to do calculations. However, you will have to determine whether the information that is provided to you is sufficient to answer the question. These questions aim to evaluate your critical thinking skills.

They generally contain a question, 2 statements, and 5 answer choices that are the same in all GMAT data sufficiency questions.

Here’s an example of a number theory data sufficiency problem video, where Mike explains the best way to go about solving such a question.

Problem Solving Questions

This question type is pretty self-explanatory: you’ll have to solve the question and come up with a solution. However, you’ll be given 5 answer choices to choose from. Generally, the majority of questions in the quant section of the GMAT will be problem-solving questions as they clearly show your abilities to use mathematical concepts to solve problems.

Make sure to check out this video where Mike shows you how to solve a Probability question.

The main concepts you should focus on

The one thing that you need to keep in mind when starting your GMAT prep is the level of math you need to know before going in for the Quant section. All you’ll need to master is high-school level math. That being said, once you have revised and mastered these math fundamentals, your final step is learning how to apply this knowledge to actual GMAT problems and you should be good to go. This is the more challenging side of things but doing this helps you tackle all the other problem areas you may be facing such as time management, confidence levels, and test anxiety

Here are the 4 main groups of questions on the quant section of the GMAT and the concepts that you should focus on for each:

Algebra

• Algebraic expressions
• Equations
• Functions
• Polynomials
• Permutations and combinations
• Inequalities
• Exponents

Geometry

• Lines
• Angles
• Triangles
• Circles
• Polygons
• Surface area
• Volume
• Coordinate geometry

Word problems

• Profit
• Sets
• Rate
• Interest
• Percentage
• Ratio
• Mixtures

Check out this Profit and Loss question.

Arithmetic

• Number theory
• Percentages
• Basic statistics
• Power and root
• Integer properties
• Decimals
• Fractions
• Probability
• Real numbers

Make sure to try your hand at this GMAT probability problem.

5 tips to improve your GMAT quant skills?

1. Master the fundamentals! This is your first step towards acing this section of the GMAT. As this section only contains math that you have already studied thoroughly in high-school, you’ll only need to revise what you have already learned and you’ll be ready to start practicing some real GMAT problems.
2. Practice time management! This is a crucial step as every single question is timed and you won’t get more than 2 minutes to spend on each question. That is why you should start timing yourself early on in your GMAT prep, so you get used to the time pressure.
3. Know the question types! This is something that you will learn once you get enough practice with some actual GMAT questions. That way, you’ll be able to easily recognize different question types and you’ll be able to use your preferred solution path without losing time.
4. Memorize the answer choices for the data sufficiency questions! These answers are always the same and their order never changes. Memorizing them will help you save precious time that you can spend elsewhere. To help you better memorize them, we are sharing an easier and less wordy way to think of them:
5. Make use of your scrap paper! There is a reason why you’re provided with scrap paper, so make sure to take advantage of it. You will definitely need it to take notes and make calculations, especially for the problem-solving questions that you will come across in this GMAT question.
• Only statement 1
• Only statement 2
• Both statements together
• Either statement
• Neither statement