Data Sufficiency (DS)

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,157

by: bb

29 Aug 2025, 13:27

ER

If x, y, and z are numbers, is z = 12 ? (1) The average (arithmetic

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

Bunuel

07 Jul 2021, 05:00

1

1,133

07 Jul 2021, 05:08

ER

What was the ratio of the number of parcels to envelopes picked up by

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

07 Jul 2021, 04:30

2

3

1,997

17 Jun 2025, 22:50

ER

If machine X ran continuously at a uniform rate to fill a production

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

07 Jul 2021, 04:00

4

3

2,513

by: aishu0091

29 Dec 2021, 22:25

ER

In year X, a certain stock market index was at 97.2 percent of its Ja

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

Bunuel

07 Jul 2021, 03:30

1

1,019

07 Jul 2021, 07:06

ER

An empty swimming pool with a capacity of 30,000 liters is to be fill

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

Bunuel

07 Jul 2021, 03:00

3

1

1,484

07 Jul 2021, 07:08

ER

If x is less than 90 percent of y, is x less than 100 ?

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

Bunuel

07 Jul 2021, 02:30

1

1,717

07 Jul 2021, 07:13

ER

If set S consists of the numbers w, x, y, and z, is the range of the

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

Bunuel

07 Jul 2021, 02:00

2

1

1,749

07 Jul 2021, 07:17

ER

If p and q are positive integers, what is the value of p/(q^2)?

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

Bunuel

07 Jul 2021, 01:30

13

7

4,144

by: Bunuel

08 Jul 2021, 01:15

ER

If a, b and c are integers, what is the value of a?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

07 Jul 2021, 01:30

8

7

2,407

by: TANYA27

08 Jul 2021, 19:07

ER

If z is a positive integer, is the remainder of z divided by 10 equal

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

taha1234

13 Jul 2021, 05:33

5

4

2,931

19 Sep 2023, 18:28

ER

For each size of paper, a certain machine makes copies

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

taha1234

13 Jul 2021, 05:33

2

1,937

06 Jul 2021, 12:00

ER

Each supervisor in the company oversees 18 workers. After a reorganiza

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

06 Jul 2021, 02:27

3

2

2,211

06 Jul 2021, 12:06

ER

John is j years old and Keith is k years old

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

taha1234

13 Jul 2021, 05:26

1

1,242

06 Jul 2021, 06:51

ER

If x0, 3 or -9, is 3/(x^2 - 3) > 0? (1) 1/x^2 > 0 (2) -2/(x^2 - 2) <0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

06 Jul 2021, 01:30

12

7

2,244

by: Bunuel

07 Jul 2021, 01:15

ER

If y is the sum of x consecutive positive integers, and x>3, is y odd?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

06 Jul 2021, 01:30

9

7

2,262

29 Sep 2023, 05:06

ER

Is y a positive integer? (1) y^2 - 1 = 0 (2) y < 1

605-655 (Medium) | Algebra, Number Properties

605-655 (Medium) | Algebra, Number Properties hide tags

Sanya15

06 Jul 2021, 00:09

11

4

2,727

by: shivani1351

14 Jan 2026, 06:25

Is 12 a factor of n? (1) n is a factor of 360 (2) 24 is a factor of n

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

177801749176

05 Jul 2021, 09:51

3

5

2,163

08 Oct 2023, 23:56

ER

A, B and C are the areas of three faces of a certain rectangular solid

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Russ19

05 Jul 2021, 08:18

2

1,226

06 Jul 2021, 11:47

ER

What is the sum of positive integers x and y ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

04 Jul 2021, 11:35

2

1,381

06 Jul 2021, 00:11

ER

What is the sum of positive integers x and y ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

04 Jul 2021, 11:33

2

3

1,501

06 Jul 2021, 00:20

ER

What is the sum of positive integers x and y ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

04 Jul 2021, 11:31

2

1,352

06 Jul 2021, 00:26

ER

If a and b are integers, is a^2+a*b odd?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

chetan2u

02 Jul 2021, 21:28

5

2

1,604

by: Archit3110

02 Jul 2021, 23:20

ER

Jade's compensation consists of a salary plus a commission that is eq

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

30 Jun 2021, 09:00

2

1,544

by: Bunuel

03 Nov 2021, 06:44

ER

Lily took an exam that had 100 questions numbered from 1 to 100. How m

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

30 Jun 2021, 08:30

1

1,235

30 Jun 2021, 09:48

ER

How many copies of book A were sold at a certain bookstore yesterday?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

30 Jun 2021, 08:00

3

1

1,741

30 Jun 2021, 09:50

ER

A certain 3-liter solution of water and concentrate consists of w lite

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

Bunuel

30 Jun 2021, 07:30

3

2

1,514

06 Jul 2021, 11:50

ER

What was the amount of money awarded to a prizewinner? (1) Of the amo

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

30 Jun 2021, 07:00

1

1,196

30 Jun 2021, 09:51

ER

Is the prime number m equal to 31 ? (1) m^2 is greater than 900.

505-555 (Easy) | Inequalities, Number Properties

505-555 (Easy) | Inequalities, Number Properties hide tags

Bunuel

30 Jun 2021, 06:30

1

865

by: GMATinsight

30 Jun 2021, 06:50

ER

Joseph wants to schedule a full-day meeting in November with co-worker

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

30 Jun 2021, 06:00

1

1,157

by: JAYESHBHATT

30 Jun 2021, 09:25

ER

If x ≠ 0 is xy > 0 ? (1) x > 0 (2) x/y > 1

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Thelegend2631

01 Jul 2021, 11:56

8

10

4,446

13 Nov 2024, 00:12

ER

If x and y are positive, what is the value of y ? (1) x = 2.247y (2)

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

30 Jun 2021, 05:30

1

1,278

by: MarmikUpadhyay

30 Jun 2021, 19:10

ER

If an item is purchased for x percent less than its retail price, and

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

Bunuel

30 Jun 2021, 05:00

3

1

2,014

by: MarmikUpadhyay

30 Jun 2021, 19:22

ER

If P is an integer between 10 and 100, what is the value of P ?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

30 Jun 2021, 04:30

2

1,635

by: KrishnanTN

30 Jun 2021, 06:19

ER

What is the ratio of x to y? (1) x is 30% less than y. (2) x is more

555-605 (Medium) | Percent and Interest Problems

555-605 (Medium) | Percent and Interest Problems hide tags

Bunuel

30 Jun 2021, 04:00

1

2

1,592

01 Jul 2021, 09:11

ER

Bill and Luke each received an increase in salary. Which one received

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

30 Jun 2021, 03:30

1

959

by: CrackverbalGMAT

30 Jun 2021, 08:20

ER

What is the value of the sum of a list of n odd integers?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

30 Jun 2021, 03:00

1

1,346

01 Jul 2021, 09:13

ER

Is r greater than 0.52? (1) r is greater than 1/2. (2) r is equal to

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

30 Jun 2021, 02:30

2

1

1,276

by: CrackverbalGMAT

30 Jun 2021, 04:29

ER

How much is 30 percent of a certain number? (1) 10 percent of the num

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

Bunuel

30 Jun 2021, 02:00

1

1,481

by: Deeptisingh1995

30 Jun 2021, 05:41

ER

Does x + y = xy ? (1) The product of x and a positive integer, z, is

555-605 (Medium) | Algebra, Inequalities

555-605 (Medium) | Algebra, Inequalities hide tags

Bunuel

29 Jun 2021, 01:30

11

8

2,605

29 Jun 2021, 20:06

ER

What was the average production rate of cups of espresso per machine

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

Bunuel

28 Jun 2021, 00:24

1

3

1,664

by: dan0015

05 Jul 2021, 11:25

ER

If k > 0, what is the value of k?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Russ19

26 Jun 2021, 07:24

5

3

3,666

by: Kinshook

27 Jun 2021, 09:02

ER

What is the standard deviation of a set of numbers whose mean is 20?

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

Bunuel

25 Jun 2021, 01:30

9

4

4,235

25 Jun 2021, 23:43

ER

What was the average production rate of cups of espresso per machine

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

25 Jun 2021, 01:30

3

5

2,141

25 Jun 2021, 23:47

ER

If x and y are integers, and x - y + 2 > 0, is x negative?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

BrentGMATPrepNow

24 Jun 2021, 07:29

12

4

2,197

31 Jul 2024, 21:36

ER

The students in two classes of "Underachiever" high school took a test

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

Bunuel

24 Jun 2021, 01:30

4

5

2,586

21 Aug 2022, 17:24

ER

How much water did the swimming pool have, if there was left 400 m3

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

sherxon

23 Jun 2021, 22:36

6

3

2,781

by: pudu

17 Jun 2023, 17:26

ER

If x^3 + x^2 = abx^2 + abx, is x = ab? 1) x > 0 2) ab = 6

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Russ19

23 Jun 2021, 06:48

3

2

1,499

23 Jun 2021, 14:03

ER

The tax Jim paid on a shipment of Cognac brandy bottles was $1 for the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

23 Jun 2021, 04:00

2

4

1,811

04 Jun 2024, 11:30

ER

The average age (arithmetic mean) of Tim, Roy, Elison and Sven is 9.

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

23 Jun 2021, 03:30

1

2

1,747