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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

4268

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  

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VeritasKarishma

179

8227

12 Oct 2019, 01:31

View the latest post Ramya16

Announcements

509
ER
View first unread post 100 Hardest and easiest questions for PS as of September 2019  

Tags: Difficulty: 700-Level

Bunuel

12

100939

29 Jul 2019, 07:22

View the latest post Shrinidhi

1905
ER
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

739854

22 Feb 2012, 11:27

View the latest post bb

Topics

3
ER
View first unread post Attachment(s) In the addition shown below A, B, C, and D are distinct digits. How ma  

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

Bunuel

2

279

27 Apr 2019, 03:20

View the latest post Archit3110

5
ER
View first unread post The straight lines given by the equation 2x^2=2y^2-3xy are:  

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

fskilnik

3

280

21 Mar 2019, 18:03

View the latest post fskilnik

2
ER
View first unread post An animal that dives into a pool of water is at a depth of x, in feet,  

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

Bunuel

5

281

18 Aug 2019, 07:48

View the latest post Jashan25

6
View first unread post If a^x = b^y = ab, then find the value of y  

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

nick1816

1

284

22 Apr 2019, 04:18

View the latest post neha283

2
View first unread post If x+y = 30 and x^3+y^3=8100, what's the value of x^2+y^2?  

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

lucajava

2

286

09 Apr 2019, 17:17

View the latest post jfranciscocuencag

7
View first unread post 4≤p≤9, -0.25≤q≤0.36, -0.49≤r≤-0.01 and r/s^2 = p^2/q, where p, q, r an  

Tags: Difficulty: 700-Level,  Algebra,  Inequalities,  Min/Max Problems,  Source: Other - Please specify

nick1816

1

288

04 Jul 2019, 03:31

View the latest post Kinshook

5
View first unread post If n, w, x, y and z are different integers such that (n– w)(n – x)(n –  

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

nick1816

5

290

20 Jul 2019, 23:04

View the latest post Dillesh4096

1
View first unread post The average age of three friends A, B and C is 7 years. Five years lat  

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

nick1816

2

292

03 Jun 2019, 18:24

View the latest post RastogiSarthak99

8
View first unread post How many integers x satisfy the equation (x ^2 − x − 1)^x+2 =  

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

Rubina11

2

293

02 May 2019, 11:49

View the latest post nick1816

6
View first unread post How many pairs of real numbers (x, y) satisfy the equation [m](x + y)^  

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

nick1816

2

294

31 May 2019, 16:57

View the latest post nick1816

5
ER
View first unread post If x, y, and z are positive numbers satisfying x + 1/y = 4, y + 1/z =  

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

Bunuel

1

294

15 Mar 2019, 01:45

View the latest post itsanujsingh

3
ER
View first unread post Let a, b, and c be real numbers such that a - 7b + 8c = 4 and 8a + 4b  

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

Bunuel

1

295

19 Mar 2019, 01:39

View the latest post EgmatQuantExpert

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

11
View first unread post A worker is kept on a contract for 100 days to make some toys. On any  

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

nick1816

4

297

02 Jun 2019, 13:40

View the latest post stne

4
ER
View first unread post If a/b<c/d & bd < 0, which of the following inequalities must be true?  

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

mangamma

1

298

25 Apr 2019, 22:42

View the latest post chetan2u

5
ER
View first unread post How many digits does 5437682*34567254 have?  

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

MathRevolution

3

299

02 Oct 2019, 02:29

View the latest post MathRevolution

ER
View first unread post a○b is defined as 1/(a+b) – 1/a.  

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

MathRevolution

5

300

25 Aug 2019, 18:52

View the latest post MathRevolution

2
View first unread post The postal service charges $3.20 per  

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

ScottK

2

300

11 Aug 2019, 10:37

View the latest post whyyash

6
ER
View first unread post Find the minimum value of x^2 + 7x + 14. A. 14 B. -7 C. 0 D. 7 E. 1.75  

Tags: Difficulty: 700-Level,  Algebra,  Min/Max Problems,  Source: Other - Please specify

Dillesh4096

1

300

12 Jul 2019, 01:06

View the latest post Bunuel

9
View first unread post There are two packets – x and y. ‘x’ contains only 25 cents coins and  

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

nick1816

3

307

20 Jun 2019, 13:03

View the latest post menonrit

11
View first unread post If the roots of the equation (x + 1) (x + 9) + 8 = 0  

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

AbdulMalikVT

5

308

23 Aug 2019, 21:22

View the latest post Kinshook

3
View first unread post If |x − 2| = p, where x < 2, then x − p =  

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

Noshad

3

308

15 Mar 2019, 22:17

View the latest post Noshad

7
View first unread post If a, b, and c are consecutive integers, where a<b<c, which of the fol  

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

Zed3092

1

309

02 Dec 2018, 03:27

View the latest post Princ

4
View first unread post Attachment(s) A tire on a car rotates at 500 RPM (revolutions per minute) when the c  

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

SajjadAhmad

1

310

27 Jul 2019, 05:45

View the latest post RJ7X0DefiningMyX

4
ER
View first unread post How many pairs (m,n) of integers satisfy the equation m+n=mn?  

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

Rubina11

2

315

17 May 2019, 10:12

View the latest post Vinit800HBS

14
ER
View first unread post x^2 + 4x + 1 = 0. What is the value of x^2 + 1/x^2?  

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

MathRevolution

2

315

03 May 2019, 00:16

View the latest post MathRevolution

1
ER
View first unread post Which two of the following numbers, when added together, yield a sum  

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

Bunuel

3

316

16 Jul 2019, 01:20

View the latest post Kinshook

2
ER
View first unread post For how many values of x<0 does the equation 0.1x^4 – 0.5x^2 – 1.4 = 0  

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

workout

2

317

20 Sep 2018, 08:40

View the latest post GMATPrepNow

4
ER
View first unread post The value of (1/x)-(4/√x)+4 is least when x =  

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

mangamma

2

319

24 Sep 2019, 00:50

View the latest post chrtpmdr

2
ER
View first unread post Winston created a function F such that F(1)=4, F(4)=3 and F(F(x))= F(x  

Tags: Difficulty: 700-Level,  Algebra,  Functions and Custom Characters,  Sequences,  Source: Other - Please specify

fskilnik

2

320

12 Feb 2019, 18:51

View the latest post fskilnik

10
View first unread post If x(x-1)/(x-2)(x-3)<0 and x<>2 and x<>3, then which of the following  

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

Kinshook

7

321

18 Jul 2019, 22:36

View the latest post Chethan92

5
ER
View first unread post The sequence a1, a2, a3, ..., an,…...is such that an= 1/n^2−1/(n−1)^2  

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

mangamma

1

321

02 May 2019, 00:27

View the latest post chetan2u

5
View first unread post Attachment(s) A wholesaler purchases “n” mobile phones from the manufacturer at a pr  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: e-GMAT

PriyankaPalit7

3

322

09 Jul 2019, 11:37

View the latest post Sanjay7392

5
ER
View first unread post If x is the smallest positive integer such that 485,100 divided by x i  

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

SajjadAhmad

6

325

25 Aug 2019, 18:34

View the latest post ScottTargetTestPrep

5
View first unread post What is the sum of {1/1∗4 + 1/2∗5 + 1/3∗6 + 1/4∗7....}  

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

utkarshg97

3

328

28 Jun 2019, 23:14

View the latest post Dillesh4096

5
ER
View first unread post A circular microchip with a radius of 2 centimeters is manufactured fo  

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

Bunuel

2

328

05 Dec 2018, 09:06

View the latest post manideep12

13
View first unread post 1(1!) + 2(2!) + 3(3!) + 4(4!)………….50(50!) is a multiple of prime P  

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

utkarshg97

2

332

28 Jun 2019, 19:08

View the latest post nick1816

5
ER
View first unread post Novak invested $5000 in scheme A for 4 years, which gave a fixed rate  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: e-GMAT

mangamma

1

334

23 Jul 2019, 04:57

View the latest post Kinshook

9
View first unread post On Christmas, Susanne bought a few flowers for $1.  

Tags: Difficulty: 700-Level,  Algebra,  Word Problems,  Source: Experts' Global,  Source: Other - Please specify

fitzpratik

3

336

23 Apr 2019, 05:02

View the latest post Raja1406

9
ER
View first unread post If x^2 – y^2 = 16 and x + y > x – y, then which one of the following  

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

Bunuel

4

338

04 Apr 2019, 18:24

View the latest post ScottTargetTestPrep

2
ER
View first unread post The number 2013 has the property that its units digit is the sum of it  

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

Bunuel

3

340

20 Mar 2019, 09:40

View the latest post Archit3110

2
View first unread post The total number of integer pairs (c, d) satisfying the equation c + d  

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

Helium

2

342

15 Aug 2018, 07:20

View the latest post PKN

8
ER
View first unread post The function f(n) is defined as the product of all integers from 1 to  

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

kiran120680

1

342

31 May 2019, 09:06

View the latest post IanStewart

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

7
ER
View first unread post If xy≠0, and √x−y=√x−√y, which of the following must be  

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

GMATPrepNow

5

348

29 Sep 2019, 23:25

View the latest post navderm

7
ER
View first unread post If k is the sum of the reciprocals of the consecutive integers from 41  

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

Bunuel

3

349

28 May 2019, 07:04

View the latest post ScottTargetTestPrep

7
View first unread post How many ordered triples (a, b, c) of non-zero real numbers have the p  

Tags: Difficulty: 700-Level,  Algebra,  Combinations,  Word Problems,  Source: 800 Score

Rubina11

2

349

26 May 2019, 07:58

View the latest post nick1816

2
ER
View first unread post p,q are both non-zero integers, which of the following would be the va  

Tags: Difficulty: 700-Level,  Algebra,  Source: Jamboree

PKN

2

350

14 Jul 2018, 20:14

View the latest post Vyshak

9
ER
View first unread post Attachment(s) The figures above show a hexagonal nut that has a width of 1 5/16  

Tags: Difficulty: 700-Level,  Arithmetic,  Geometry,  Source: Official Guide

gmatt1476

3

351

21 Sep 2019, 05:57

View the latest post GMATGuruNY

1
View first unread post (H^2 - 2H)^(1/2) = T(1 - R^2)^(1/2)/(K(1 - g^k)), then 3H =  

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

KSBGC

1

354

11 Mar 2019, 12:14

View the latest post garvitbh111

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