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View first unread post EMPOWERgmat PS Forum Expert - Ask Me Anything about PS and Math  

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EMPOWERgmatRichC

24

4269

27 Sep 2019, 11:20

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View first unread post Attachment(s) Veritas Prep PS Forum Expert - Karishma - Ask Me Anything about Math  

Go to page: 1 ... 7, 8, 9 Tags: Source: Veritas Prep

VeritasKarishma

179

8230

12 Oct 2019, 01:31

View the latest post Ramya16

Announcements

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View first unread post 100 Hardest and easiest questions for PS as of September 2019  

Tags: Difficulty: 700-Level

Bunuel

12

100949

29 Jul 2019, 07:22

View the latest post Shrinidhi

1905
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View first unread post Attachment(s) GMAT PS Question Directory by Topic & Difficulty  

Tags: Difficulty: 600-700 Level,  Difficulty: 700-Level,  Difficulty: Sub-600 Level,  Combinations,  Mixture Problems,  Work/Rate Problems,  Source: GMAT Club Tests,  Source: GMAT Prep,  Source: Official Guide

bb

0

739920

22 Feb 2012, 11:27

View the latest post bb

Topics

3
ER
View first unread post For a positive integer n, f(n) is defined as 1 + 1/2 + 1/3 + … + 1/n.  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

5

280

20 Oct 2019, 10:15

View the latest post vs224

46
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View first unread post A project requires a rectangular sheet of cardboard satisfying the fol  

Tags: Difficulty: 700-Level,  Algebra,  Geometry,  Source: Manhattan GMAT

bkpolymers1617

6

2273

19 Oct 2019, 10:26

View the latest post Pritishd

5
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View first unread post xy and yx are a pair of reversed two digit positive integers. If x^2-y  

Tags: Difficulty: 700-Level,  Algebra,  Divisibility/Multiples/Factors,  Source: Other - Please specify

gracie

3

581

19 Oct 2019, 08:15

View the latest post Kinshook

21
View first unread post What is the 21st digit of the decimal [  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Other - Please specify

gmatbusters

7

865

18 Oct 2019, 07:36

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15
ER
View first unread post Find the range of values of x such that ((x+6) (3x-4)^3)/(x+2)^2 > 0  

Tags: Difficulty: 700-Level,  Algebra,  Inequalities,  Source: e-GMAT

EgmatQuantExpert

10

1625

17 Oct 2019, 13:10

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25
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View first unread post The function f is defined by f(x)=2^(x−1)−5. If f(x)=63, then the valu  

Tags: Difficulty: 700-Level,  Algebra,  Exponents/Powers,  Functions and Custom Characters,  Source: Veritas Prep

Bunuel

7

2333

17 Oct 2019, 07:00

View the latest post StressTest

19
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View first unread post Given that x^4 – 25x^2 = -144, which of the following is NOT  

Tags: Difficulty: 700-Level,  Algebra,  Source: Manhattan GMAT

subhashghosh

8

7435

17 Oct 2019, 01:01

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92
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View first unread post The sum of the first n positive perfect squares, where n is  

Go to page: 1, 2 Tags: Difficulty: 700-Level,  Algebra,  Arithmetic,  Number Properties

kirankp

26

14832

16 Oct 2019, 07:34

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1247
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View first unread post Attachment(s) Last Sunday a certain store sold copies of Newspaper A for  

Go to page: 1, 2, 3 Tags: Difficulty: 700-Level,  Arithmetic,  Percents and Interest Problems,  Source: OG 2015,  Source: OG 2016,  Source: OG 2017,  Source: OG 2018,  Source: OG 2019,  Source: OG 2020,  Source: Official Guide

udaymathapati

49

80704

15 Oct 2019, 23:56

View the latest post chrtpmdr

164
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View first unread post If 2^4x = 3,600, what is the value of (2^1-x)^2 ?  

Tags: Difficulty: 700-Level,  Algebra,  Exponents/Powers,  Source: Official Guide

Reni

14

7801

15 Oct 2019, 17:09

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2
View first unread post David and Michael together can finish a job in 4 days 19  

Tags: Difficulty: 700-Level,  Arithmetic,  Work/Rate Problems,  Source: Other - Please specify

jackfr2

2

190

15 Oct 2019, 12:34

View the latest post stne

48
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View first unread post Attachment(s) For any numbers x and y, x#y = xy - x - y if x#y=1 which  

Tags: Difficulty: 700-Level,  Algebra,  Functions and Custom Characters,  Source: GMAT Club Tests

bmwhype2

13

7967

15 Oct 2019, 09:36

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161
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View first unread post If x and y are positive, which of the following must be greater than  

Go to page: 1, 2 Tags: Difficulty: 700-Level,  Algebra,  Must or Could be True Questions,  Roots,  Source: GMAT Prep

study

20

16647

15 Oct 2019, 04:41

View the latest post bumpbot

17
View first unread post The integer n is formed by writing the integers 1 through 3  

Tags: Difficulty: 700-Level,  Arithmetic

fozzzy

9

2509

14 Oct 2019, 14:20

View the latest post coylahood

45
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View first unread post If x and y are non-zero numbers and the value of (y)10x5 is -1, which  

Tags: Difficulty: 700-Level,  Absolute Values/Modulus,  Algebra

niteshwaghray

15

2747

14 Oct 2019, 02:37

View the latest post Bunuel

14
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View first unread post If x =-100^1/3*100^3 , then the value of 1/x is  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Princeton Review

daviesj

8

3595

14 Oct 2019, 01:46

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278
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View first unread post Attachment(s) The number of stamps that Kaye and Alberto had were in the  

Go to page: 1, 2 Tags: Difficulty: 700-Level,  Arithmetic,  Fractions/Ratios/Decimals,  Word Problems,  Source: GMAT Prep

kilukilam

30

48621

13 Oct 2019, 05:19

View the latest post ArvindCrackVerbal

11
View first unread post Find the number of integer solutions to |a| + |b| + |c| = 10, where no  

Tags: Difficulty: 700-Level,  Absolute Values/Modulus,  Algebra,  Source: e-GMAT

Kinshook

4

379

13 Oct 2019, 03:35

View the latest post Peddi

4
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View first unread post If (x - 2 3^1/2) is one of the quadratic X^2 + (4 3^1/2)x - 36, what  

Tags: Difficulty: 700-Level,  Algebra,  Roots,  Source: Economist GMAT Tutor

TheEconomistGMAT

2

218

13 Oct 2019, 00:38

View the latest post TheEconomistGMAT

33
ER
View first unread post List M consists of 50 decimals, each of which has a value between  

Tags: Difficulty: 700-Level,  Algebra,  Arithmetic,  Word Problems,  Source: Manhattan GMAT

souvik101990

7

2304

11 Oct 2019, 07:58

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20
ER
View first unread post If x, y and z are non-negative integers such that x < y < z,  

Tags: Difficulty: 700-Level,  Algebra,  Combinations,  Source: GMATPrepNow

GMATPrepNow

4

939

11 Oct 2019, 07:48

View the latest post exc4libur

76
ER
View first unread post Attachment(s) A certain business produced x rakes each month form November  

Tags: Difficulty: 700-Level,  Arithmetic,  Word Problems,  Source: GMAT Prep

udaymathapati

16

20241

11 Oct 2019, 03:27

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27
ER
View first unread post How many such positive integers exist so that if the unit digit of the  

Tags: Difficulty: 700-Level,  Arithmetic,  Divisibility/Multiples/Factors,  Number Properties,  Source: Other - Please specify

Vardan95

6

1827

10 Oct 2019, 13:03

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17
ER
View first unread post Two gardeners, Burton and Philip, work at independent  

Tags: Difficulty: 700-Level,  Algebra,  Work/Rate Problems,  Source: Other - Please specify

Kritesh

5

1480

09 Oct 2019, 22:54

View the latest post AdityaCrackVerbal

31
ER
View first unread post If (a + b):(b + c):(c + a) = 6:7:8 and a + b + c = 14, then find a:b:c  

Tags: Difficulty: 700-Level,  Algebra,  Fractions/Ratios/Decimals,  Source: Other - Please specify

Bunuel

6

16840

09 Oct 2019, 17:25

View the latest post TheNightKing

5
View first unread post A bag of 216 caramels is divided equally among a group of children.  

Tags: Difficulty: 700-Level,  Algebra,  Statistics and Sets Problems,  Source: Princeton Review

energetics

3

577

09 Oct 2019, 12:09

View the latest post energetics

26
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View first unread post Attachment(s) If g(x) = 2^x + x, how many solutions satisfy the equation g(x) = 2?  

Tags: Difficulty: 700-Level,  Algebra,  Exponents/Powers,  Graphs and Illustrations,  Source: Other - Please specify

TeamGMATIFY

8

3104

09 Oct 2019, 11:08

View the latest post bumpbot

129
ER
View first unread post A convenience store currently stocks 48 bottles of mineral water. The  

Go to page: 1, 2 Tags: Difficulty: 700-Level,  Arithmetic,  Statistics and Sets Problems,  Word Problems,  Source: Manhattan GMAT

dred

23

16391

09 Oct 2019, 06:53

View the latest post menonpriyanka92

38
ER
View first unread post In a certain game, a large bag is filled with blue, green, p  

Go to page: 1, 2 Tags: Difficulty: 700-Level,  Arithmetic

jusjmkol740

25

7720

08 Oct 2019, 10:44

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23
ER
View first unread post For integers x and y, which of the following MUST be an integer?  

Tags: Difficulty: 700-Level,  Algebra,  Number Properties,  Source: Veritas Prep

Bunuel

12

2602

08 Oct 2019, 10:13

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210
ER
View first unread post A set of 15 different integers has median of 25 and a range  

Go to page: 1, 2 Tags: Difficulty: 700-Level,  Algebra,  Statistics and Sets Problems,  Source: GMAT Prep

bhushangiri

23

47158

08 Oct 2019, 08:12

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53
ER
View first unread post If a three-digit positive integer has its digits reversed, the  

Tags: Difficulty: 700-Level,  Arithmetic,  Number Properties,  Source: GMAT Club Tests

Bunuel

9

3143

08 Oct 2019, 01:07

View the latest post Kinshook

43
ER
View first unread post What is the units digit of 66^6 - 5^55?  

Tags: Difficulty: 700-Level,  Arithmetic,  Exponents/Powers,  Source: GMAT Club Tests

Bunuel

16

2931

08 Oct 2019, 00:58

View the latest post Kinshook

13
ER
View first unread post Which of the following are roots of an equation x-2+2x-1-15=0  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

8

2559

07 Oct 2019, 07:38

View the latest post jvarmaonninen

14
ER
View first unread post A GMAT aspirant appears for a certain number of tests. His average sco  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Other - Please specify

nick1816

5

432

07 Oct 2019, 07:14

View the latest post exc4libur

10
View first unread post A certain investment grows at an annual interest rate of 16 percent...  

Tags: Difficulty: 700-Level,  Algebra,  Exponents/Powers,  Source: Kaplan

CAMANISHPARMAR

2

689

07 Oct 2019, 06:32

View the latest post exc4libur

16
ER
View first unread post The product of the first 10 prime numbers is closest to whic  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Veritas Prep

emmak

5

8037

07 Oct 2019, 05:15

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4
ER
View first unread post If M and N are non-zero integers and M > N, then which of the  

Tags: Difficulty: 700-Level,  Algebra,  Arithmetic,  Number Properties,  Source: EMPOWERgmat

EMPOWERgmatRichC

4

295

06 Oct 2019, 21:05

View the latest post EMPOWERgmatRichC

24
ER
View first unread post Two trains, 100 miles apart, travelling towards each other on parallel  

Tags: Difficulty: 700-Level,  Algebra,  Distance/Rate Problems,  Source: Other - Please specify

DisciplinedPrep

4

687

06 Oct 2019, 20:00

View the latest post Harsh2111s

6
ER
View first unread post If a and b are nonnegative integers and 4a + 3b = 32, how many values  

Tags: Difficulty: 700-Level,  Algebra,  Source: Other - Please specify

Bunuel

8

1495

06 Oct 2019, 07:17

View the latest post bhargava05

79
ER
View first unread post At an amusement park, tom bought a number of red tokens and  

Tags: Difficulty: 700-Level,  Arithmetic,  Word Problems,  Source: Economist GMAT Tutor,  Source: Manhattan GMAT

calreg11

16

7986

06 Oct 2019, 06:59

View the latest post bumpbot

7
ER
View first unread post An office building housed some tenants and service workers.  

Tags: Difficulty: 700-Level,  Arithmetic,  Word Problems,  Source: Other - Please specify

Hovkial

2

251

05 Oct 2019, 16:50

View the latest post ScottTargetTestPrep

12
ER
View first unread post If a1 and a2 are the real roots of x^2-px+12=0, then which of the  

Tags: Difficulty: 700-Level,  Absolute Values/Modulus,  Algebra,  Source: Other - Please specify

darshshah981

3

344

05 Oct 2019, 11:04

View the latest post TestPrepUnlimited

21
ER
View first unread post Find the range of values of x that satisfy the inequality (x - 3)^2  

Tags: Difficulty: 700-Level,  Algebra,  Inequalities,  Source: e-GMAT

EgmatQuantExpert

8

3819

05 Oct 2019, 10:58

View the latest post aggarwalneha91

6
ER
View first unread post The number of visible stars in the night sky, T, can be estimated by  

Tags: Difficulty: 700-Level,  Arithmetic,  Word Problems,  Source: Other - Please specify

Bunuel

4

445

04 Oct 2019, 02:56

View the latest post Bunuel

279
ER
View first unread post The product of all the prime numbers less than 20 is closest to which  

Tags: Difficulty: 700-Level,  Arithmetic,  Exponents/Powers,  Source: OG 2015,  Source: OG 2016,  Source: OG 2017,  Source: OG 2018,  Source: OG 2019,  Source: OG 2020,  Source: Official Guide

Bunuel

15

61081

03 Oct 2019, 19:05

View the latest post jabhatta@umail.iu.edu

14
ER
View first unread post If x is negative and y is positive, what is 4x2−4xy+y2  

Tags: Difficulty: 700-Level,  Absolute Values/Modulus,  Algebra,  Source: Veritas Prep

PriyankaPalit7

6

964

03 Oct 2019, 15:58

View the latest post dcummins

10
View first unread post Attachment(s) Edward invested five-ninths of his money at an annual rate of 2r% comp  

Tags: Difficulty: 700-Level,  Algebra,  Percents and Interest Problems,  Source: e-GMAT

kiran120680

4

652

03 Oct 2019, 13:18

View the latest post icanhazmba

8
ER
View first unread post Cathy has equal numbers of nickels and quarters worth a total of $7.50  

Tags: Difficulty: 700-Level,  Algebra,  Source: Other - Please specify

Bunuel

6

2998

03 Oct 2019, 12:25

View the latest post ScottTargetTestPrep

1279
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View first unread post NEW!!! Tough and tricky exponents and roots questions  

Go to page: 1, 2, 3, 4, 5 Tags: Difficulty: 700-Level,  Algebra,  Exponents/Powers,  Roots,  Source: GMAT Club Tests

Bunuel

97

316893

03 Oct 2019, 02:58

View the latest post Bunuel

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