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Quants doubt: probability

by: Bunuel

24 Apr 2026, 03:17

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doubt on this question

by: Bunuel

24 Apr 2026, 03:22

GMAT Club Tests Archive

Some of these are no longer applicable as questions have been modified over the years but we wanted to preserve them

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23 Apr 2026, 15:18

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GMATbuster's Weekly GMAT Quant Quiz - Saturday Sep 29 10 AM PST

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29 Sep 2018, 09:55

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3,250

29 Sep 2018, 09:55

GMATbuster's Weekly GMAT Quant Quiz # 9 Saturday Nov 17, 9 AM PST

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Problem Solving Territory: 700+ questions only..............

1, 2, 3

cicerone

25 Sep 2008, 00:58

59

11,296

13 Sep 2009, 12:55

Data Sufficiency Competition--Prizes can be won

1, 2, 3

cicerone

25 Sep 2008, 01:47

56

7,808

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21 Oct 2006, 04:05

David says to robert "if you guve me 15 of your tiles,

1, 2

abhishek1990p

18 Apr 2013, 03:49

2

35

5,459

19 Apr 2013, 20:46

Manhattan dropped the ball on Data Sufficency

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DAYNE

02 Jun 2010, 10:11

3

33

6,607

17 Aug 2010, 06:51

Poll: GMATBuster's Webinar

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GMATBusters

13 Jan 2020, 07:24

8

32

6,264

by: GMATBusters

02 Dec 2020, 06:20

Jun and Aaron are equally good at chess.

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SojuGirl

25 Apr 2021, 23:00

29

5,106

30 Apr 2021, 00:01

divisibility & primes

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almostfamous

20 Sep 2010, 19:12

5

29

6,177

28 Dec 2013, 10:45

Is 4^{\frac12}+4^{\frac13}+4^{\frac14} greater than 5? I'm

1, 2

walker

25 Mar 2008, 05:58

17

28

5,592

20 Apr 2008, 22:57

Please Welcome Bunuel as the New Math Forum Moderator

1, 2

bb

12 Jan 2012, 08:35

76

27

33,544

21 Jun 2021, 10:00

I found this problem on the internet while trying to find

1, 2

nitinneha

26 Oct 2007, 11:02

24

3,440

29 Oct 2007, 19:08

For what value of p is the expression 2(x*x*x)-3(x*x)+7x+p

1, 2

smcgrath12

25 Aug 2004, 14:51

24

2,196

13 Jun 2006, 19:46

This is a little bit of a puzzle and a little bit of quiz.

1, 2

anirban16

03 Feb 2005, 14:21

23

3,701

06 Feb 2005, 09:45

Is ! even? (1) E=Q (2) Q=2

1, 2

stolyar

18 Dec 2004, 18:09

22

5,621

21 Mar 2005, 02:49

1, 2

old_dream_1976

29 Dec 2006, 14:39

7

21

8,998

08 Jan 2015, 03:04

Find a nonzero integer Q (1) Q is a prime root of Q^Q=Q^3

1, 2

yezz

12 Oct 2006, 16:48

1

21

4,877

15 Oct 2006, 09:38

When 10 people in bank line up for deposit, Vivek insists on

1, 2

conocieur

04 Apr 2006, 17:19

21

3,556

15 Apr 2006, 10:52

A 30 litre mixture of Bacardi and Coke contains 20% Coke in

1, 2

sunniboy007

11 Jan 2004, 11:25

21

3,554

25 Feb 2005, 15:46

Poll: Should we require OA with post of each question?

1, 2

bb

29 Oct 2009, 12:59

4

20

7,250

23 Nov 2009, 23:51

At certain university ,the ratio of teachers to students for

1, 2

ishtmeet

17 Oct 2006, 03:09

20

3,773

17 Oct 2006, 16:47

I am looking for a quicker method ?? If equilateral triangle

1, 2

praveen_rao7

27 Mar 2005, 08:18

20

3,609

05 Apr 2005, 17:36

Collection of questions

vomhorizon

15 Nov 2012, 07:30

1

19

3,692

05 Mar 2016, 18:54

Question from Challenge 7

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22 Feb 2006, 08:40

1

19

2,355

30 Oct 2008, 08:08

solve without trig

sset009

19 Jul 2008, 16:26

19

3,329

20 Jul 2008, 11:18

An equilatteral triangle that has an area of 9*(3^1/2) is

puma

05 Jun 2008, 12:37

19

3,056

by: jallenmorris

06 Jun 2008, 11:12

I quit the forum... Time to start my MBA !

Fig

30 Dec 2007, 16:28

19

2,620

06 Jan 2008, 08:39

Is 5^ ( x +2 ) /25 < 1? 5^x < 1 x < 0 I know the

ggarr

09 Jan 2007, 12:50

19

2,823

10 Jan 2007, 19:51

another realtime GMAT question

faizaniftikhar83

16 Feb 2005, 01:31

19

3,057

by: maneeshkumar

17 Feb 2005, 04:08

Q: a)How many odd three - digit numbers can be formed from

AlexTsipkis

16 Oct 2007, 09:49

2

18

36,270

24 Dec 2018, 15:26

GMAT Club Tests (25 Math + 6 Verbal)

bb

17 Feb 2009, 14:44

6

18

17,068

01 Aug 2017, 08:32

Q What is the remainder when the positive integer x is

vd

10 May 2008, 03:57

18

2,360

22 Jul 2008, 07:38

There are n different size pairs of shoes in the box. One

lexis

06 May 2008, 23:20

1

18

3,501

12 Jun 2008, 04:44

If X and Y are prime numbers, is y(x-3) odd?? 1) X>10 2)

gobucks

15 Aug 2006, 18:24

18

2,638

by: rollingrock22

16 Aug 2006, 21:41

consultinghokie

08 May 2006, 14:01

18

4,232

10 May 2006, 02:31

David completes 60% of an assigned task in 8 days and

cloaked_vessel

06 Mar 2005, 16:39

2

18

3,045

29 Mar 2005, 13:11

This Weeks MGMAT problem

Praetorian

16 Dec 2003, 00:44

18

2,667

16 Dec 2003, 09:36

GMAT Quant Q of the Day - Week of 3.24.2023

alldaytestprep

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1

17

3,077

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25 Mar 2023, 12:29

High LSAT scorer transitioning to GMAT: complete!

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5

17

6,432

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When can we manipulate the Qstem in inequalities?

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26 Apr 2016, 11:16

7

17

3,118

31 Jan 2018, 02:11

2 sums with Modulus and Inequality both

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27 Oct 2010, 02:55

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11,044

19 Jul 2017, 04:28

Need Guidance Quant-URGENT !!

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28 Dec 2015, 00:26

1

17

1,912

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08 Feb 2016, 11:31

During certain 5 months, the highest month sales value is 5.

pb_india

13 May 2005, 06:24

17

5,612

10 Jul 2011, 11:44

GMAT Club Math Book_updated till 09-Oct-2010

AtifS

14 Oct 2010, 15:25

13

17

5,191

05 Jun 2011, 17:35

Poll: Vote - Should We Change the Structure of Math GMAT Forum?

bb

27 Mar 2009, 09:13

17

1,946

12 Apr 2009, 05:19

How to add this ? 1 + 11 + 111 + 9 terms

mistdew

11 Aug 2003, 21:57

1

17

4,573

19 Nov 2008, 03:59

the area of a parallelogram is 100. what is the perimeter of

bmwhype2

15 Dec 2007, 16:02

17

2,089

19 Dec 2007, 19:34

how many integers can be factors of 78? (do it without

bmwhype2

08 Nov 2007, 02:19

1

17

3,503

by: KillerSquirrel

18 Nov 2007, 13:44

Edited) Don completes a car journey totalling x miles.

MBAlad

16 Sep 2006, 13:22

17

1,414

17 Sep 2006, 09:24

deowl

07 Jun 2006, 09:58

17

3,681

10 Jun 2006, 18:54

a is the sum of x consecutive positive integers. b is the

BG

16 May 2006, 00:49

17

2,726

18 May 2006, 19:16

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