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Math Revolution GMAT Instructor
Joined: 16 Aug 2015
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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 01 Apr 2016, 07:11
Also, the highly advanced hidden integer questions frequently appear on exams. (ex 6) Tom, who has 50 math questions, will get 5 points per question if he chooses a correct answer. If he chooses a wrong answer to a question or skips one, he will lose 2 points per question. Then, which of the following can be the score if he solves all the 50 questions? A. 192 B. 193 C. 194 D. 195 E. 196 Answer: C
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Math Revolution GMAT Instructor
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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07 Apr 2016, 16:47
Also, a question like n!=n(n-1)!=n(n-1)(n-2)! frequently appears on GMAT. Look at the question below. (ex 5)Which of the following is equal to (x+1)!/x!? A. x-1 B. 1+(1/x) C. 1 D. x+1 E. x Answer: DIn this question, from (x+1)!/x!=(x+1)x!/x!=x+1, D becomes the answer. You will find this type of question very often.
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Math Revolution GMAT Instructor
Joined: 16 Aug 2015
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GPA: 3.82
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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11 Apr 2016, 17:34
Furthermore, highly advanced integer questions are frequently given on GMAT. (ex 6) If it is well known that (1.0001)^100is approximately 1.01 and (1.01)^100 is approximately 2.7, what is the value of ((1.0001)^200)^200 approximately? A. 43 B. 47 C. 53 D. 61 E. 64 Answer: C In this case, C becomes the answer. However, facing with a question like this without knowing concepts of questions can be very challenging. This type of integer questions is given very often, so you have to be very cautious.
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Math Revolution GMAT Instructor
Joined: 16 Aug 2015
Posts: 9181
GPA: 3.82
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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18 Apr 2016, 16:59
Moreover, inequality questions disregarding square are always given on GMAT. Look at the question below. (ex 5) Is x^3y^2z>0? 1) xz>0 2) x^2y>0 As disregarding square, if xy is not 0, the question becomes is xz>0?. 1) xz>0 and 2) y>0, which makes C the answer.
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Joined: 14 Apr 2016
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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21 Apr 2016, 19:02
Thank you for this useful post!
How are you able to gather so much detailed information on what questions are being used in live GMAT exams today?
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Senior Manager
Status: Always try to face your worst fear because nothing GOOD comes easy. You must be UNCOMFORTABLE to get to your COMFORT ZONE
Joined: 15 Aug 2014
Posts: 255
Concentration: Marketing, Technology
GMAT 1: 570 Q44 V25 GMAT 2: 600 Q48 V25
WE: Information Technology (Consulting)
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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23 Apr 2016, 22:26
MathRevolution wrote: Questions related to geometry are continuously increasing. Let’s have a look at the example of the recent trend. (ex 4) Attachment: GEOMETRY.jpg If n regular pentagons are tangent each other in points of a circle as above figure, n=? A. 8 B. 9 C. 10 D. 11 E. 12 Answer: C Questions like the above are increasing. Therefore, students preparing for GMAT should focus on geometry more intensively. Can someone explain how option C is correct here
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Senior Manager
Status: Always try to face your worst fear because nothing GOOD comes easy. You must be UNCOMFORTABLE to get to your COMFORT ZONE
Joined: 15 Aug 2014
Posts: 255
Concentration: Marketing, Technology
GMAT 1: 570 Q44 V25 GMAT 2: 600 Q48 V25
WE: Information Technology (Consulting)
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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23 Apr 2016, 22:38
MathRevolution wrote: Also, geometry questions are rising continuously. Let's take the recent question as an example. (ex 4) Attachment: yin yang.jpg There is a yin-yang symbol shown as above figure such that its radius is 2. What is the area of the region shaded? 1) Both arc MNO and arc OCD are the same semi-circles. 2) The area of region shaded is half of the area of the circle Answer: BIn this case, 1) and 2) are the same, which makes D the answer. Just like the question above, slightly difficult and deriving 1)=2) questions which make D the answer are frequently given as well. This type of geometry questions are steadily on an upward tendency. Does the answer to this question B or D? If D please explain option A
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"When you want to succeed as bad as you want to breathe, then you’ll be successful.” - Eric Thomas
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Math Revolution GMAT Instructor
Joined: 16 Aug 2015
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GPA: 3.82
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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27 Apr 2016, 00:27
depchetoad wrote: Thank you for this useful post!
How are you able to gather so much detailed information on what questions are being used in live GMAT exams today? Hi, The math research institute of Max lee has been continuously surveyed our student after an exam about type of questions, chapter, etc. Based on the survey, we try to figure out what is the recent type of question. Also, in order to find out types of GMAT Math questions, we search related websites of other countries, which enables us to come up with recent type of question.
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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28 Apr 2016, 08:41
Excellent port MathRevolution
Thank you
+1 Kudos for the detailed stats
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Math Revolution GMAT Instructor
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Posts: 9181
GPA: 3.82
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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29 Apr 2016, 00:26
Plus, geometry questions are continuously increasing. Let's have a look at the recent question. Attachment: 
triangle.jpg [ 9.33 KiB | Viewed 5608 times ]
If BC=a, AB=x, AC=y, and AD=h, is ∠BAC=90o? 1) xy=ah 2) ∠C=30 Answer: AIn this case, Modify the original condition and the question. In order to satisfy ∠BAC=90. AB should be a base line and AC be a height, at the same time, BC should be a base line and AD should be a height as well. Then, the areas of the triangles should be the same, which is (1/2)xy=(1/2)ah? -> xy=ah?. Hence, the answer is A.
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MathRevolution: Finish GMAT Quant Section with 10 minutes to spareThe one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy. "Only $79 for 1 month Online Course""Free Resources-30 day online access & Diagnostic Test""Unlimited Access to over 120 free video lessons - try it yourself"
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Math Revolution GMAT Instructor
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GPA: 3.82
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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02 May 2016, 04:08
Plus, geometry questions are consistently increasing. For instance, Attachment: 
attachment.jpg [ 15.62 KiB | Viewed 5544 times ]
A certain rectangle has L and W shown as above figure such that L=2W. If the region has uniformly width d, the area of the region shaded is what percent of the area of the entire region? 1) w=3d 2) w=360 Answer: AIn this case, when one con is ratio and the other con is number, ratio is an answer. For 1), w=3d is ratio, which is sufficient. Hence, the answer is A.
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Math Revolution GMAT Instructor
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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05 May 2016, 21:28
Questions involving consecutive integers always appear in the GMAT Math. (ex 6) What is the range of consecutive 35 even numbers? A. 34 B. 35 C. 66 D. 68 E. 70 Answer: D
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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07 May 2016, 03:44
Do GMAT compulsorily ask Permutation questions. Should i study that topic or not
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Math Revolution GMAT Instructor
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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09 May 2016, 21:45
TIMEBBA wrote: Do GMAT compulsorily ask Permutation questions. Should i study that topic or not It is extremely rare that GMAT compulsorily ask permutation questions and you don't have to study permutation separately. All you need to do is to memorise the fomula of nPr as nPr is part of nCr. Thank you.
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MathRevolution: Finish GMAT Quant Section with 10 minutes to spareThe one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy. "Only $79 for 1 month Online Course""Free Resources-30 day online access & Diagnostic Test""Unlimited Access to over 120 free video lessons - try it yourself"
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Math Revolution GMAT Instructor
Joined: 16 Aug 2015
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GPA: 3.82
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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13 May 2016, 04:58
Geometry questions frequently appear in the test. If I were to give an example of a question that resembles the current trend: If O is a center of a circle as above figure, what is the area of the region shaded? 1) ∠AOB=30o. 2) The length of arc CA is π. Answer: C There are 2 variables (radius and degree AOB) in the original condition. Hence the correct answer is C.
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1.png [ 16.67 KiB | Viewed 5667 times ]
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MathRevolution: Finish GMAT Quant Section with 10 minutes to spareThe one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy. "Only $79 for 1 month Online Course""Free Resources-30 day online access & Diagnostic Test""Unlimited Access to over 120 free video lessons - try it yourself"
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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13 May 2016, 08:51
[quote="MathRevolution"]Geometry questions frequently appear in the test. If I were to give an example of a question that resembles the current trend:
Thank you very much Sir.We all are Fan of yours. Cheers for MAX sir
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Math Revolution GMAT Instructor
Joined: 16 Aug 2015
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GPA: 3.82
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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15 May 2016, 20:41
Questions involving probability and integers frequently appear as well. (ex 6) If 5 integers are selected randomly from all the integers between 11 and 30 inclusive, what is the probability that the 5 numbers selected must contain 11 and 13? A. 1/10 B. 3/19 C. 1/17 D. 1/19 E. 1/18 Answer: D 18C3/20C5=1/19. Hence, the correct answer is D.
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Math Revolution GMAT Instructor
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GPA: 3.82
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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21 May 2016, 16:45
A probability question frequently appears in the test. 3 different colors are there. We paint the colors to the region numbered as shown above figure. If adjacent regions are painted by different colors, how many possible ways are there? A. 12 B. 18 C. 24 D. 28 E. 30 Answer: A As adjacent regions are painted by different colors, we get 3*2*1*2=12.
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12.png [ 7.12 KiB | Viewed 5354 times ]
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Math Revolution GMAT Instructor
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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22 May 2016, 16:41
There are many questions related to geometry. Let’s take a look at one example. A circle with its radius is 30 are surrounded by fence that has 10 as a uniform width, what fraction of the large circle’s area is the fence’s area? A. 1/4 B. 2/5 C. 7/16 D. 9/16 E. 11/16 Answer: C From above question, [(40^2)π-(30^2π)]/402π=7/16. The answer is C.
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.png [ 9.53 KiB | Viewed 5336 times ]
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MathRevolution: Finish GMAT Quant Section with 10 minutes to spareThe one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy. "Only $79 for 1 month Online Course""Free Resources-30 day online access & Diagnostic Test""Unlimited Access to over 120 free video lessons - try it yourself"
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Math Revolution GMAT Instructor
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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25 May 2016, 17:46
This is a probability question. Each digit of 3-digit codes are formed from 0, 2, 4, 5, and 6. Each digit of the codes cannot be repeated. If the codes are divisible by 5, how many possible codes are there? A. 9 B. 12 C. 20 D. 21 E. 24 Answer: D Since the codes need to be divided by 5, the units digit cannot be 0. Then we got 3*3=9. If the units digit is 0, we get 4*3=12. Then, 9+12=21. The answer is D.
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Re: Overview of GMAT Math Question Types and Patterns on the GMAT
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25 May 2016, 17:46
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