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# Problem Solving (PS)

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 EMPOWERgmat PS Forum Expert - Ask Me Anything about PS and Math   Go to page: 1, 2 Tags: Source: EMPOWERgmat
EMPOWERgmatRichC

24

4268

27 Sep 2019, 11:20

 Veritas Prep PS Forum Expert - Karishma - Ask Me Anything about Math   Go to page: 1 ... 7, 8, 9 Tags: Source: Veritas Prep

179

8227

12 Oct 2019, 01:31

Announcements

509
ER
 100 Hardest and easiest questions for PS as of September 2019
Bunuel

12

100939

29 Jul 2019, 07:22

1905
ER
 GMAT PS Question Directory by Topic & Difficulty
bb

0

739854

22 Feb 2012, 11:27

Topics

3
ER
 In the addition shown below A, B, C, and D are distinct digits. How ma
Bunuel

2

279

27 Apr 2019, 03:20

5
ER
 The straight lines given by the equation 2x^2=2y^2-3xy are:
fskilnik

3

280

21 Mar 2019, 18:03

2
ER
 An animal that dives into a pool of water is at a depth of x, in feet,
Bunuel

5

281

18 Aug 2019, 07:48

6
 If a^x = b^y = ab, then find the value of y
nick1816

1

284

22 Apr 2019, 04:18

2
 If x+y = 30 and x^3+y^3=8100, what's the value of x^2+y^2?
lucajava

2

286

09 Apr 2019, 17:17

7
 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
nick1816

1

288

04 Jul 2019, 03:31

5
 If n, w, x, y and z are different integers such that (n– w)(n – x)(n –
nick1816

5

290

20 Jul 2019, 23:04

1
 The average age of three friends A, B and C is 7 years. Five years lat
nick1816

2

292

03 Jun 2019, 18:24

8
 How many integers x satisfy the equation (x ^2 − x − 1)^x+2 =
Rubina11

2

293

02 May 2019, 11:49

6
 How many pairs of real numbers (x, y) satisfy the equation [m](x + y)^
nick1816

2

294

31 May 2019, 16:57

5
ER
 If x, y, and z are positive numbers satisfying x + 1/y = 4, y + 1/z =
Bunuel

1

294

15 Mar 2019, 01:45

3
ER
 Let a, b, and c be real numbers such that a - 7b + 8c = 4 and 8a + 4b
Bunuel

1

295

19 Mar 2019, 01:39

4
ER
 If M and N are non-zero integers and M > N, then which of the
EMPOWERgmatRichC

4

295

06 Oct 2019, 21:05

11
 A worker is kept on a contract for 100 days to make some toys. On any
nick1816

4

297

02 Jun 2019, 13:40

4
ER
 If a/b
mangamma

1

298

25 Apr 2019, 22:42

5
ER
 How many digits does 5437682*34567254 have?
MathRevolution

3

299

02 Oct 2019, 02:29

ER
 a○b is defined as 1/(a+b) – 1/a.
MathRevolution

5

300

25 Aug 2019, 18:52

2
 The postal service charges \$3.20 per
ScottK

2

300

11 Aug 2019, 10:37

6
ER
 Find the minimum value of x^2 + 7x + 14. A. 14 B. -7 C. 0 D. 7 E. 1.75
Dillesh4096

1

300

12 Jul 2019, 01:06

9
 There are two packets – x and y. ‘x’ contains only 25 cents coins and
nick1816

3

307

20 Jun 2019, 13:03

11
 If the roots of the equation (x + 1) (x + 9) + 8 = 0
AbdulMalikVT

5

308

23 Aug 2019, 21:22

3
 If |x − 2| = p, where x < 2, then x − p =

3

308

15 Mar 2019, 22:17

7
 If a, b, and c are consecutive integers, where a
Zed3092

1

309

02 Dec 2018, 03:27

4
 A tire on a car rotates at 500 RPM (revolutions per minute) when the c

1

310

27 Jul 2019, 05:45

4
ER
 How many pairs (m,n) of integers satisfy the equation m+n=mn?
Rubina11

2

315

17 May 2019, 10:12

14
ER
 x^2 + 4x + 1 = 0. What is the value of x^2 + 1/x^2?
MathRevolution

2

315

03 May 2019, 00:16

1
ER
 Which two of the following numbers, when added together, yield a sum
Bunuel

3

316

16 Jul 2019, 01:20

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

2

317

20 Sep 2018, 08:40

4
ER
 The value of (1/x)-(4/√x)+4 is least when x =
mangamma

2

319

24 Sep 2019, 00:50

2
ER
 Winston created a function F such that F(1)=4, F(4)=3 and F(F(x))= F(x
fskilnik

2

320

12 Feb 2019, 18:51

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

7

321

18 Jul 2019, 22:36

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

1

321

02 May 2019, 00:27

5
 A wholesaler purchases “n” mobile phones from the manufacturer at a pr
PriyankaPalit7

3

322

09 Jul 2019, 11:37

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

6

325

25 Aug 2019, 18:34

5
 What is the sum of {1/1∗4 + 1/2∗5 + 1/3∗6 + 1/4∗7....}
utkarshg97

3

328

28 Jun 2019, 23:14

5
ER
 A circular microchip with a radius of 2 centimeters is manufactured fo
Bunuel

2

328

05 Dec 2018, 09:06

13
 1(1!) + 2(2!) + 3(3!) + 4(4!)………….50(50!) is a multiple of prime P
utkarshg97

2

332

28 Jun 2019, 19:08

5
ER
 Novak invested \$5000 in scheme A for 4 years, which gave a fixed rate
mangamma

1

334

23 Jul 2019, 04:57

9
 On Christmas, Susanne bought a few flowers for \$1.
fitzpratik

3

336

23 Apr 2019, 05:02

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

4

338

04 Apr 2019, 18:24

2
ER
 The number 2013 has the property that its units digit is the sum of it
Bunuel

3

340

20 Mar 2019, 09:40

2
 The total number of integer pairs (c, d) satisfying the equation c + d
Helium

2

342

15 Aug 2018, 07:20

8
ER
 The function f(n) is defined as the product of all integers from 1 to
kiran120680

1

342

31 May 2019, 09:06

12
ER
 If a1 and a2 are the real roots of x^2-px+12=0, then which of the
darshshah981

3

344

05 Oct 2019, 11:04

7
ER
 If xy≠0, and √x−y=√x−√y, which of the following must be
GMATPrepNow

5

348

29 Sep 2019, 23:25

7
ER
 If k is the sum of the reciprocals of the consecutive integers from 41
Bunuel

3

349

28 May 2019, 07:04

7
 How many ordered triples (a, b, c) of non-zero real numbers have the p
Rubina11

2

349

26 May 2019, 07:58

2
ER
 p,q are both non-zero integers, which of the following would be the va
PKN

2

350

14 Jul 2018, 20:14

9
ER
 The figures above show a hexagonal nut that has a width of 1 5/16
gmatt1476

3

351

21 Sep 2019, 05:57

1
 (H^2 - 2H)^(1/2) = T(1 - R^2)^(1/2)/(K(1 - g^k)), then 3H =
KSBGC

1

354

11 Mar 2019, 12:14

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