Last visit was: 25 Apr 2026, 15:26

It is currently 25 Apr 2026, 15:26

Toolkit

Decision Tracker

Quantitative Questions

Quant Question Archive [LOCKED]

12,184

Topics

29,298

Posts

Quants doubt: probability

by: Bunuel

24 Apr 2026, 03:17

15,589

Topics

36,368

Posts

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Some of these are no longer applicable as questions have been modified over the years but we wanted to preserve them

1,596

Topics

5,677

Posts

by: bumpbot

23 Apr 2026, 15:18

Quant Question Archive [LOCKED]

Author

Announcements

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

bb

29 Sep 2018, 09:55

0

3,251

29 Sep 2018, 09:55

GMAT Club Member
Recommended Prep Products:

Best GMAT Books

Our hand-picked recommendations

Best GMAT Courses

Reviews Verified with Score Reports

Tutor Directory

Tutor Reviews & Prices in one place

Topics

Pythagorean assumptions

cs77

28 Jun 2004, 10:23

2

1,607

28 Jun 2004, 14:41

Problem Solving Question #380 in O.G.

Roc-a-fella

29 Jun 2004, 14:26

2

1,726

30 Jun 2004, 08:48

Thanks for challenging us. I am sure it is going to be

dhandaydham

29 Jun 2004, 21:38

0

1,676

by: dhandaydham

29 Jun 2004, 21:38

Daifu University Question

ashkg

30 Jun 2004, 20:00

4

2,255

02 Jul 2004, 08:33

GMAT Challenge Question......confused!!

cbrf3

01 Jul 2004, 06:16

3

2,120

01 Jul 2004, 18:52

If you throw a dice 6 times, what's the probability that

sid_477

02 Jul 2004, 07:59

2

3,381

02 Jul 2004, 08:52

Is the odd integer X a prime number? 1) X+2 is a prime

tapsemi

02 Jul 2004, 16:00

0

1,783

02 Jul 2004, 16:00

crackgmat750

03 Jul 2004, 23:32

3

1,224

08 Jul 2004, 07:53

If x^2 = integer, is x always an integer

Acer

04 Jul 2004, 21:41

3

2,741

by: enigmatic007

07 Jul 2004, 10:35

There is a sack with 10 white balls. In how many ways can

stolyar

05 Jul 2004, 04:15

2

1,306

05 Jul 2004, 22:19

If 3 and 8 are the lengths of two sides of a triangular

dr_sabr

05 Jul 2004, 09:47

2

1,851

05 Jul 2004, 10:57

This is probably one of the harder GMAT geometry questions

Curly05

05 Jul 2004, 10:39

0

2,510

05 Jul 2004, 10:39

Logic Problem!!

cbrf3

05 Jul 2004, 13:50

6

2,267

06 Jul 2004, 09:53

How many students play football or Chess? See atatched file!

cbrf3

05 Jul 2004, 16:47

3

1,599

06 Jul 2004, 10:20

In a battle 70% of the combatants lost an eye, 80% an

khurman

05 Jul 2004, 16:49

0

13,307

05 Jul 2004, 16:49

Let N be the greatest integer multiple of 8, no two of those

sathya76

07 Jul 2004, 12:03

0

4,567

07 Jul 2004, 12:03

boksana

07 Jul 2004, 18:44

0

1,931

07 Jul 2004, 18:44

A lot contains 20 articles.The probability that the lot

khurman

08 Jul 2004, 00:36

3

2,153

08 Jul 2004, 07:30

given that n*=-1/n find 3**

stolyar

08 Jul 2004, 05:31

2

1,435

08 Jul 2004, 06:00

If K and X are integers, is K^X=1? (1) X=1 (2) K^K=K

stolyar

08 Jul 2004, 06:12

4

1,193

08 Jul 2004, 07:27

a - b = 10 a(a - b) + b(b - a) = ? Anyone know what the best

ian7777

08 Jul 2004, 10:44

5

1,927

08 Jul 2004, 20:34

Word problem - why doesn't my method work?

achuard

08 Jul 2004, 11:21

3

1,983

09 Jul 2004, 06:18

In a team of 9 employees, 5 are members of the union. If the

cs77

09 Jul 2004, 07:14

7

2,791

10 Jul 2004, 05:43

Find the standard deviation of set F. (1) the standard

stolyar

11 Jul 2004, 09:59

2

1,491

11 Jul 2004, 15:40

carsen

11 Jul 2004, 18:58

10

2,615

12 Jul 2004, 18:58

Is X prime? (1) X is a perfect square (2) X^2 is a perfect

stolyar

12 Jul 2004, 00:34

4

1,799

17 Jul 2004, 00:06

Find the standard deviation of ten-member set Y. (1) the set

stolyar

12 Jul 2004, 03:11

10

2,647

20 Aug 2004, 07:41

M*) is enoted as the product of all inetgers from 1 to M. If

carsen

12 Jul 2004, 07:58

6

1,631

13 Jul 2004, 02:40

George passes a point P at exactly 12:00 walking at a rate

carsen

12 Jul 2004, 08:31

14

1,805

16 Jul 2004, 15:06

Select 5 numbers from the series of 1 to 20 (inclusive).

carsen

12 Jul 2004, 08:25

10

2,719

14 Jul 2004, 08:51

What is the remainder of 2K/N ? 1) K is a factor of N. 2) K

Dookie

12 Jul 2004, 11:03

2

861

17 Jul 2004, 16:24

Can some one explain this solution in detail

K_s_r

12 Jul 2004, 23:35

5

1,802

16 Jul 2004, 22:57

3 integers have an average of 27. The median of these three

ian7777

13 Jul 2004, 06:56

7

1,579

15 Jul 2004, 15:18

carsen

13 Jul 2004, 09:24

7

2,069

16 Jul 2004, 08:28

Order matters or not

damit

13 Jul 2004, 13:59

3

1,828

14 Jul 2004, 11:37

Can someone tell me the simple formulae to calculate the

carsen

15 Jul 2004, 07:12

5

3,080

15 Jul 2004, 23:50

carsen

15 Jul 2004, 12:54

0

1,877

15 Jul 2004, 12:54

When a certain car uses premium fuel, the car averages 12

ian7777

15 Jul 2004, 15:43

6

1,415

16 Jul 2004, 06:53

What is the radius of the inscribed circle to a triangle

Rajven

16 Jul 2004, 11:26

0

2,759

16 Jul 2004, 11:26

A certain number when successively divided by 8 and 11

ian7777

16 Jul 2004, 11:28

0

10,031

16 Jul 2004, 11:28

unclear question

Guest

16 Jul 2004, 23:43

0

2,278

16 Jul 2004, 23:43

K^4 is divisible by 32. When K is divided by 32, what can be

Dookie

16 Jul 2004, 23:53

0

1,879

16 Jul 2004, 23:53

What is the largest prime number P so that (p^2)/12 leaves a

Dookie

17 Jul 2004, 07:00

10

1,160

18 Jul 2004, 14:03

Each of the 30 boxes in a certain shipment weighs either 10

carsen

18 Jul 2004, 19:54

0

1,542

18 Jul 2004, 19:54

Answer to Probability question

saurya_s

19 Jul 2004, 08:56

3

2,259

19 Jul 2004, 09:47

What is the ratio of the even to odd divisors of 60 ? a) 1:1

Dookie

19 Jul 2004, 09:27

3

1,960

20 Jul 2004, 14:03

Counting factors of a number

saurya_s

22 Jul 2004, 09:25

3

3,260

22 Jul 2004, 13:55

if n and p are different positive prime numbers, which of

carsen

22 Jul 2004, 10:56

0

2,064

22 Jul 2004, 10:56

Given that 3-x1/2=(2x-7)1/2, what is x? (i.e., "1/2" means

cavanbas

23 Jul 2004, 02:56

5

1,473

28 Jul 2004, 01:02

Mrs. Hopkins has two math classes, each with the same number

ian7777

23 Jul 2004, 12:51

4

1,590

24 Jul 2004, 00:13

Moderator: