GMAT Club Forum

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Complete 1000 GMAT Problem Solving Series (PS-1000 Series) Questions

Bunuel

03 Dec 2022, 14:23

217

11

108,635

by: Bunuel

23 Mar 2025, 01:53

ER

100 Hardest and easiest questions for PS as of May 2025

Bunuel

21 Aug 2015, 03:49

1,069

7

290,960

by: Bunuel

03 Dec 2024, 01:03

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GMAT PS Question Directory by Topic & Difficulty

bb

22 Feb 2012, 11:27

3,090

0

1,302,948

by: bb

22 Feb 2012, 11:27

ER

In a certain baord game, a stack of 48 cards, 8 of which

Sub 505 Level | Probability

Sub 505 Level | Probability hide tags

1, 2

rajman41

24 Jul 2012, 06:19

116

29

34,416

by: bumpbot

20 Jun 2025, 23:52

ER

If an integer is to be randomly selected from set M above

555-605 Level | Probability

555-605 Level | Probability hide tags

marcodonzelli

12 Jan 2008, 05:29

150

12

52,097

by: GmatKnightTutor

18 Jun 2025, 21:17

ER

If the probability that event S will not occur is 1 - y, then the prob

Sub 505 Level | Probability

Sub 505 Level | Probability hide tags

Bunuel

15 Oct 2019, 08:17

8

5

8,176

by: bumpbot

13 Jun 2025, 23:01

ER

A magician has five animals in his magic hat: 3 doves and 2

505-555 Level | Probability

505-555 Level | Probability hide tags

1, 2

xALIx

14 Jun 2008, 13:25

105

25

24,792

by: KarishmaB

12 Jun 2025, 20:50

ER

From a group of 8 volunteers, including Andrew and Karen, 4 people are

555-605 Level | Probability

555-605 Level | Probability hide tags

1, 2

mba1382

02 Oct 2013, 06:28

805

31

114,072

by: Bunuel

30 May 2025, 09:52

ER

If a certain coin is flipped, the probability that the coin will land

Sub 505 Level | Probability

Sub 505 Level | Probability hide tags

1, 2

marcodonzelli

12 Jan 2008, 03:44

223

26

94,924

by: Bunuel

27 May 2025, 23:35

ER

Tanya prepared 4 different letters to be sent to 4 different addresses

705-805 Level | Probability

705-805 Level | Probability hide tags

1, 2, 3

tealeaflin

15 Oct 2006, 14:12

1,610

42

210,821

by: Bixy34

25 May 2025, 03:28

ER

Gambling with 4 dice, what is the probability of getting an

655-705 Level | Probability

655-705 Level | Probability hide tags

1, 2

cyberjadugar

24 May 2012, 01:31

212

20

23,757

by: bumpbot

24 May 2025, 14:30

ER

There are 10 solid-colored balls in a box, including 1 green ball and

555-605 Level | Probability

555-605 Level | Probability hide tags

imhimanshu

29 Jun 2012, 23:17

291

17

42,595

by: bumpbot

20 May 2025, 12:39

ER

A string of 10 lightbulbs is wired in such a way that if any individua

555-605 Level | Probability

555-605 Level | Probability hide tags

1, 2

massi2884

23 Apr 2012, 14:43

449

23

58,279

by: Ziniya

17 May 2025, 06:58

ER

A certain junior class has 1,000 students and a certain

655-705 Level | Probability

655-705 Level | Probability hide tags

1, 2

blog

23 Jan 2008, 12:55

796

28

98,598

by: bumpbot

14 May 2025, 08:34

ER

Kim has 5 pairs of shoes; each pair is a different color

555-605 Level | Probability

555-605 Level | Probability hide tags

NoHalfMeasures

20 Dec 2015, 19:40

109

10

19,784

by: siddhantvarma

12 May 2025, 20:37

ER

The membership of a committee consists of 3 English teachers

Sub 505 Level | Combinations, Probability

Sub 505 Level | Combinations, Probability hide tags

udaymathapati

02 Sep 2010, 13:15

101

11

39,917

by: bumpbot

05 May 2025, 15:33

ER

If two of the four expressions x + y, x + 5y, x - y, and 5x - y are

605-655 Level | Probability

605-655 Level | Probability hide tags

1, 2

ronny13

15 Apr 2010, 04:19

844

33

170,008

by: Light11

02 May 2025, 20:07

ER

If a number between 0 and 1 is selected at random, which of

505-555 Level | Probability

505-555 Level | Probability hide tags

pradeepparihar

17 Apr 2012, 08:22

83

8

12,353

by: saynchalk

29 Apr 2025, 11:10

ER

A certain basket contains 10 apples 7 of which are red and 3 are green

555-605 Level | Combinations, Probability

555-605 Level | Combinations, Probability hide tags

tradinggenius

24 Jan 2011, 01:05

124

11

39,703

by: bumpbot

28 Apr 2025, 15:39

ER

An integer n between 1 and 99, inclusive, is to be chosen at

605-655 Level | Multiples and Factors, Probability

605-655 Level | Multiples and Factors, Probability hide tags

1, 2

accincognito

04 Oct 2013, 03:12

893

25

107,370

by: Slow_Yogi

20 Apr 2025, 11:00

ER

If the probability that Stock A will increase in value during the next

705-805 Level | Probability

705-805 Level | Probability hide tags

1, 2

MHIKER

17 Jan 2012, 12:49

1,081

25

101,461

by: findingmyself

13 Apr 2025, 06:19

ER

In the graduating class of a certain college, 48 percent of

505-555 Level | Probability

505-555 Level | Probability hide tags

enigma123

20 Mar 2012, 09:39

111

10

42,192

by: bumpbot

07 Apr 2025, 11:35

ER

From a bag containing 12 identical blue balls, y identical

555-605 Level | Probability

555-605 Level | Probability hide tags

Matador

06 Apr 2006, 15:32

212

17

52,299

by: ravi1522

03 Apr 2025, 20:23

ER

In a stack of cards, 9 cards are blue and the rest are red

555-605 Level | Probability

555-605 Level | Probability hide tags

Jcpenny

10 Oct 2008, 11:05

83

13

25,213

by: GGGMAT2

26 Feb 2025, 02:45

ER

If a coin has an equal probability of landing heads up or tails up eac

555-605 Level | Probability

555-605 Level | Probability hide tags

Bunuel

11 Oct 2019, 04:24

41

8

9,275

by: bumpbot

13 Feb 2025, 20:14

ER

If a coin has an equal probability of landing heads up or

555-605 Level | Probability

555-605 Level | Probability hide tags

Richard Lee

27 Dec 2007, 02:43

97

17

35,901

by: bumpbot

07 Jan 2025, 08:25

ER

The three squares above share vertex A with AF = FE and AE =

555-605 Level | Geometry, Probability

555-605 Level | Geometry, Probability hide tags

fozzzy

09 Jan 2013, 20:34

71

8

19,818

by: bumpbot

07 Jan 2025, 03:36

ER

A jar contains 16 marbles, of which 4 are red, 3 are blue, and the res

Sub 505 Level | Probability

Sub 505 Level | Probability hide tags

banksy

14 Feb 2011, 17:24

17

7

22,157

by: bumpbot

05 Jan 2025, 05:10

ER

When tossed, a certain coin has equal probability of landing

555-605 Level | Probability

555-605 Level | Probability hide tags

young_gun

25 Dec 2007, 12:52

141

9

37,547

by: bumpbot

24 Dec 2024, 03:29

ER

The variable x takes on integer values between, 1 and 7 inclusive, as

555-605 Level | Probability, Statistics and Sets Problems

555-605 Level | Probability, Statistics and Sets Problems hide tags

fozzzy

08 Jan 2013, 21:25

188

13

26,848

by: bumpbot

17 Dec 2024, 23:20

ER

If an integer n is to be chosen at random from the integers 1 to 96

805+ Level | Multiples and Factors, Probability

805+ Level | Multiples and Factors, Probability hide tags

1, 2

JCLEONES

16 Apr 2008, 10:25

1,586

35

156,873

by: micahman

04 Dec 2024, 19:04

ER

Ten nominees for three business awards are randomly seated at the 10

805+ Level | Probability

805+ Level | Probability hide tags

Bunuel

19 Sep 2019, 03:44

214

19

11,941

by: QuantMadeEasy

30 Nov 2024, 12:03

ER

Of 200 people surveyed, 80 percent own a cellular phone and 45 percen

505-555 Level | Overlapping Sets, Probability

505-555 Level | Overlapping Sets, Probability hide tags

evannolimit

18 Jul 2016, 02:31

156

16

33,676

by: Birthday109

23 Nov 2024, 01:59

ER

If a person purchases 15 of the 3,000 tickets sold in a raffle that aw

Sub 505 Level | Probability

Sub 505 Level | Probability hide tags

Bunuel

22 May 2020, 08:59

35

11

13,121

by: Rosso

22 Nov 2024, 07:18

The probability that a visitor at the mall buys a pack of candy is 30%

555-605 Level | Probability

555-605 Level | Probability hide tags

CMcAboy

03 Apr 2011, 16:14

69

8

12,582

by: bumpbot

15 Nov 2024, 03:30

ER

From a Group of 8 People, Including George and Nina, 3 people are

555-605 Level | Combinations, Probability

555-605 Level | Combinations, Probability hide tags

mohitmohit11

01 May 2016, 11:24

355

16

55,606

by: KarishmaB

14 Oct 2024, 04:12

ER

On his drive to work, Leo listens to one of three radio stations A, B

555-605 Level | Probability

555-605 Level | Probability hide tags

alexn49

11 Nov 2010, 08:00

114

11

20,435

by: bumpbot

04 Oct 2024, 10:24

ER

A certain roller coaster has 3 cars, and a passenger is equally likely

605-655 Level | Probability

605-655 Level | Probability hide tags

nakib77

13 Oct 2005, 13:49

251

14

38,373

by: sarthak1701

23 Sep 2024, 08:21

ER

A basket contains 5 apples, of which 1 is spoiled and the rest are

555-605 Level | Probability

555-605 Level | Probability hide tags

1, 2

bmiller0731

02 Mar 2009, 12:37

392

23

92,616

by: bumpbot

19 Sep 2024, 20:07

ER

For one toss of a certain coin, the probability that the outcome is he

605-655 Level | Probability

605-655 Level | Probability hide tags

ralucaroman

25 Oct 2009, 18:38

163

14

23,106

by: sarthak1701

18 Sep 2024, 06:03

ER

If an integer n is to be selected at random from 1 to 100, inclusive,

555-605 Level | Multiples and Factors, Probability

555-605 Level | Multiples and Factors, Probability hide tags

mitko20m

16 Jul 2016, 11:37

672

19

95,030

by: DmitryFarber

07 Sep 2024, 23:20

ER

Six cards numbered from 1 to 6 are placed in an empty bowl. First one

605-655 Level | Probability

605-655 Level | Probability hide tags

AndrewN

18 Jun 2023, 06:01

59

5

6,879

by: Reshab

07 Sep 2024, 09:32

ER

There are 8 magazines lying on a table; 4 are fashion magazines and th

505-555 Level | Probability

505-555 Level | Probability hide tags

Jcpenny

10 Oct 2008, 13:12

95

12

25,042

by: bumpbot

05 Sep 2024, 06:26

ER

A number is to be selected at random from the set above. What is the

555-605 Level | Algebra, Probability

555-605 Level | Algebra, Probability hide tags

vanidhar

25 Oct 2010, 07:43

59

14

22,390

by: bumpbot

03 Sep 2024, 07:28

ER

Joshua and Jose work at an auto repair center with 4 other

505-555 Level | Probability

505-555 Level | Probability hide tags

aiming700plus

27 Jun 2006, 22:20

97

17

21,984

by: bumpbot

04 Aug 2024, 20:47

ER

A contest will consist of n questions, each of which is to be answered

555-605 Level | Min-Max Problems, Probability

555-605 Level | Min-Max Problems, Probability hide tags

SimaQ

18 Nov 2006, 09:48

210

6

31,460

by: bumpbot

03 Aug 2024, 05:15

ER

The figure shown represents a board with 4 rows of pegs, and at the bo

805+ Level | Probability

805+ Level | Probability hide tags

1, 2

ugo_castelo

13 Oct 2006, 10:33

218

23

40,388

by: Aarushi225

06 Jul 2024, 11:27

ER

A certain manufacturer of cake, muffin, and bread mixes has 100 buyers

505-555 Level | Overlapping Sets, Probability

505-555 Level | Overlapping Sets, Probability hide tags

sunny4frenz

20 Sep 2009, 09:32

59

13

22,250

by: bumpbot

12 Jun 2024, 06:14

ER

In a survey of 248 people, 156 are married, 70 are self-employed and 2

555-605 Level | Overlapping Sets, Probability

555-605 Level | Overlapping Sets, Probability hide tags

gsaxena26

14 Jun 2010, 06:35

22

6

13,928

by: DanTheGMATMan

04 Jun 2024, 09:56

ER

A flower arrangement consists of 30 roses, each of which is either whi

Sub 505 Level | Probability

Sub 505 Level | Probability hide tags

Bunuel

04 Jul 2018, 00:08

31

8

18,930

by: bumpbot

19 Mar 2024, 16:29

ER

There are 15 slate rocks, 20 pumice rocks, and 10 granite rocks random

Sub 505 Level | Probability

Sub 505 Level | Probability hide tags

avenger

02 Oct 2007, 13:34

15

7

13,482

by: bumpbot

10 Mar 2024, 09:20

ER

A box contains 25 red blacks, 100 blue blocks, and 175 yellow blocks.

Sub 505 Level | Probability

Sub 505 Level | Probability hide tags

xmagedo

19 Jul 2010, 03:07

4

6

12,676

by: bumpbot

19 Nov 2022, 09:04

Problem Solving (PS)