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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

100938

29 Jul 2019, 07:22

1905
ER
 GMAT PS Question Directory by Topic & Difficulty
bb

0

739851

22 Feb 2012, 11:27

Topics

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

3

299

02 Oct 2019, 02:29

8
 Find the number of non-negative integer solutions of
TheNightKing

1

193

30 Sep 2019, 22:56

30
ER
 If the sum of the first 30 positive odd inte
EgmatQuantExpert

12

3512

30 Sep 2019, 09:03

120
ER
 If y=root(3y+4), then the product of all possible solution
Prax

15

8777

30 Sep 2019, 07:28

8
ER
 If x and y are integers and 2*x^(1/2) + y^2 < 5, then x*y can take how
Bunuel

1

215

30 Sep 2019, 06:47

19
 If sqrt(3x)-sqrt(4y)=3 and x-4/3y=5 then xy =
Scyzo

7

1444

30 Sep 2019, 05:56

17
ER
 If x and y are integers greater than 3, and 15y – 11x = 8,
GMATPrepNow

8

1270

30 Sep 2019, 05:37

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

5

347

29 Sep 2019, 23:25

6
ER
 xyz=2, what is the value of x/(xy+x+2) + y/(yz+y+1) + 2z/(zx+2
MathRevolution

3

233

29 Sep 2019, 23:20

82
ER
 For integers a, b, and c, if ab = bc, then which of the foll
emmak

13

25923

29 Sep 2019, 13:06

6
ER
 What is the value of Z if (|2Z|)! – |Z| = Z ?
Bunuel

3

395

29 Sep 2019, 04:54

26
ER
 What is the value of 1/(1*2)+1/(2*3)+...+1/(99*100)?
broall

10

8507

29 Sep 2019, 01:07

3
 Let f(x) = min{x^2 - 2, 1 - 2x}, for any positive real numbe
Dillesh4096

2

187

29 Sep 2019, 01:03

17
 |a+b|/|a|+|b| + |b+c|/|b|+|c| +|c+a|/|c|+|a|=M
nick1816

10

745

28 Sep 2019, 05:02

12
ER
 Two train of equal length running in opposite direction
jackfr2

3

636

28 Sep 2019, 04:07

28
 (1+√3)(√(2 + √3) = ?
jwang516

4

1348

27 Sep 2019, 23:23

17
ER
 One filter decreases the concentration of harmful substances in water
honchos

9

3427

27 Sep 2019, 04:47

40
ER
 What is the product of all values of x that satisfies the equation:
EgmatQuantExpert

17

3896

27 Sep 2019, 04:26

61
ER
 If x= 1/(2^2*3^2*4^2*5^2) is expressed as a decimal, how many distinct
sony1000

7

3764

27 Sep 2019, 03:51

40
ER
 The cost per unit of electricity during a 4 year period is a
Safal

11

4866

27 Sep 2019, 03:12

12
ER
 If 0 < x < 1 and y > 1, (√(x + y − 2√xy) + √(x + y + 2√xy) =
Bunuel

6

802

26 Sep 2019, 22:20

160
ER
 An investor purchased 100 shares of stock X at 6 1/8 dollars   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Arithmetic,  Word Problems
surupab

22

27928

25 Sep 2019, 23:10

16
ER
 If (x^2+8)yz < 0, wz > 0, and xyz < 0, the which of the following mus
CAMANISHPARMAR

6

1101

25 Sep 2019, 16:26

8
ER
 At Nat’s Nuts a 2.25 pound bag of pistachio nuts cost \$6.00. At this
Bunuel

11

1055

25 Sep 2019, 08:47

121
ER
 The mean of (54,820)^2 and (54,822)^2 =
enigma123

13

9087

25 Sep 2019, 05:45

28
ER
 The ratio, by volume, of acid to base to water in a certain solution
Prashanth3007

6

1997

24 Sep 2019, 22:30

202
ER
 N and M are each 3-digit integers. Each of the numbers 1, 2,   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Arithmetic,  Min/Max Problems,  Source: GMAT Prep
nobelgirl777

24

19382

24 Sep 2019, 09:48

123
ER
 How many different pairs of integers (a, b) exist such that 2 <= a <=
Bunuel

8

6304

24 Sep 2019, 07:27

3
ER
 If f(x^2 – 1) = x^4 – 7x^2 + k1 and f(x^3 – 2) = x^6 – 9x^3 + k2, find
DisciplinedPrep

4

376

24 Sep 2019, 04:08

13
ER
 In the recent electoral polls, 15% of the voter turnout were under the
ssp4all

4

2304

24 Sep 2019, 01:21

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

2

319

24 Sep 2019, 00:50

57
ER
 The table shows the amount budgeted and the amount spent for each of
AbdurRakib

10

10083

23 Sep 2019, 19:07

6
ER
 If the average (arithmetic mean) of 7 positive temperatures is x degre

2

231

23 Sep 2019, 18:29

261
ER
 If each expression under the square root is greater than or   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Absolute Values/Modulus,  Algebra,  Roots,  Source: GMAT Club Tests
study

25

13591

23 Sep 2019, 07:20

249
ER
 An object thrown directly upward is at a height of h feet
IEsailor

20

32186

23 Sep 2019, 05:15

24
ER
 If x and y are odd positive integers, and x and y both have an odd
GMATPrepNow

5

552

22 Sep 2019, 13:25

32
ER
 A merchant paid \$300 for a shipment of x identical calculators. The
boomtangboy

9

9868

21 Sep 2019, 06:09

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

4
ER
 If a temperature can be converted from the M scale to the P scale by m

2

168

21 Sep 2019, 05:25

33
ER
 If x^1+x^(−1)=5, what is the value of x^4+x^(−4)?
Bunuel

8

3529

20 Sep 2019, 07:00

104
ER
 What is the sum of all four digit integers formed using the digits 1,
Bunuel

12

3115

19 Sep 2019, 21:45

1273
ER
 0.99999999/1.0001 - 0.99999991/1.0003 =

25

60707

19 Sep 2019, 12:52

69
ER
 If y=−m^2, which of the following must be true?
Joy111

19

9603

19 Sep 2019, 11:30

42
ER
 In the sequence 1, 2, 2, …, an, …, an = an-1 • an-2.
hb

4

7457

19 Sep 2019, 06:14

113
ER
 If x^4 + y^4 = 100, then the greatest possible value of x is between
ulm

14

12732

19 Sep 2019, 04:36

22
ER
 A certain car company manufactured x cars at a cost of c dollars per
LakerFan24

7

1849

18 Sep 2019, 06:56

82
ER
 If n = 10^10 and n^n = 10^d, what is the value of d?
russ9

12

11506

17 Sep 2019, 04:11

106
ER
 In the figure shown, if the area of the shaded region is 3 times
Bunuel

22

16699

17 Sep 2019, 01:00

21
 All the page numbers from book are added, beginning at page
GMATtracted

6

12977

16 Sep 2019, 16:56

83
ER
 If w, x, y, and z are non-negative integers, each less than
abhi758

15

7261

16 Sep 2019, 07:25

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