GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

183

15

83,616

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of May 2026

1, 2

Bunuel

01 Jan 2026, 05:45

862

24

191,707

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

491,650

by: bb

29 Aug 2025, 13:27

ER

At the beginning of the year, the Finance Committee and the Planning C

555-605 (Medium) | Fractions and Ratios

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

Bunuel

25 Oct 2015, 09:15

148

14

44,332

by: Ishaan30

09 Jul 2025, 04:04

ER

GMAT Club Olympics 2025 (Day 6): An old photograph shows a group of

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

1, 2, 3, 4, 5

Bunuel

07 Jul 2025, 08:00

53

87

3,528

by: D3N0

09 Jul 2025, 00:56

ER

If $6,000 invested for one year at x percent simple annual interest

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

19 Jan 2018, 10:48

4

2

3,217

by: bumpbot

08 Jul 2025, 23:30

ER

How many shirts does Phil own? (1) 12 of Phil's shirts are dress shirt

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

30 Jul 2018, 05:56

3

6

4,152

by: bumpbot

08 Jul 2025, 23:25

ER

GMAT Club Olympics 2025 (Day 6): A department store received

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

1, 2...5, 6

Bunuel

07 Jul 2025, 08:00

88

100

3,167

by: Edwin555

08 Jul 2025, 22:58

ER

In the sequence a1,a2,a3,…, an,an is determined for all values of n>2

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

Bunuel

29 Jan 2015, 08:35

22

8

8,927

by: bumpbot

08 Jul 2025, 15:02

ER

In 2001, Joe paid 5.1 percent of his income in taxes. In 2002, did Joe

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

28 Apr 2021, 06:00

4

2

1,366

by: bumpbot

08 Jul 2025, 14:59

ER

In the xy-plane, if line l has negative slope and passes through the

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

Bunuel

12 Jan 2022, 05:30

2

1,772

by: bumpbot

08 Jul 2025, 13:30

ER

A certain investment earned a fixed rate of 4 percent interest per yea

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

21 Oct 2015, 21:37

147

15

38,096

by: bumpbot

08 Jul 2025, 12:39

ER

In a certain group, the average (arithmetic mean) age of the males is

605-655 (Medium) | Statistics and Sets Problems, Word Problems

605-655 (Medium) | Statistics and Sets Problems, Word Problems hide tags

Bunuel

25 Jul 2018, 04:15

22

7

12,458

by: adithya000

08 Jul 2025, 12:10

ER

Which data set has the greater standard deviation, data set K or data

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

26 Feb 2015, 06:36

32

13

14,661

by: bumpbot

08 Jul 2025, 10:47

ER

A farmer who grows strawberries defines a workday yield as the

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

10 Jun 2018, 05:20

13

8

6,962

by: rushimehta

08 Jul 2025, 09:30

ER

The table above shows the number of students in a certain high school

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

26 Oct 2015, 10:07

116

11

29,756

by: bumpbot

08 Jul 2025, 07:12

ER

Did United States carriers use more than 10 billion gallons of jet fue

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

31 Dec 2020, 01:33

5

5,458

by: bumpbot

08 Jul 2025, 06:09

ER

How many of the employees at McIntyre Elementary School are vegetarian

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

19 Dec 2016, 05:34

5

4

2,450

by: bumpbot

07 Jul 2025, 23:17

ER

There are 33 students in a certain class, 18 are girls. If 23 of the

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

17 Oct 2022, 01:30

2

1,498

by: bumpbot

07 Jul 2025, 22:38

ER

The regular price for canned soup was reduced during a sale. How much

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

12 Dec 2014, 07:38

3

5

10,126

by: bumpbot

07 Jul 2025, 21:13

ER

If m, n and p are all digits greater than 1 and their sum is also a

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

26 Aug 2022, 06:30

3

4

1,220

by: peaky

07 Jul 2025, 12:57

ER

A stack of colored cards is sorted such that x blue cards, y red cards

705-805 (Hard) | Fractions and Ratios

705-805 (Hard) | Fractions and Ratios hide tags

Bunuel

15 Aug 2019, 01:30

6

5

2,556

by: bumpbot

07 Jul 2025, 06:13

ER

The average marks obtained in a test by x students of a class was m.

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

03 Jul 2017, 05:00

13

4

3,332

by: needforspeed112

07 Jul 2025, 04:27

ER

For any positive number n, the function #n represents the value of the

655-705 (Hard) | Functions and Custom Characters

655-705 (Hard) | Functions and Custom Characters hide tags

Bunuel

20 Jan 2022, 02:30

14

4

4,485

by: bumpbot

07 Jul 2025, 04:08

ER

For integer n, f(n) denotes the remainder when n is divided by integer

805+ (Hard) | Functions and Custom Characters, Remainders

805+ (Hard) | Functions and Custom Characters, Remainders hide tags

Bunuel

21 Mar 2019, 02:51

15

3

4,890

by: bumpbot

06 Jul 2025, 22:46

ER

If x is a positive integer, is x/21 an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

26 Jun 2018, 05:51

7

3

3,152

by: bumpbot

06 Jul 2025, 20:31

ER

A person invests an equal amount of money in two investment schemes fo

505-555 (Easy) | Percent and Interest Problems

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

Bunuel

05 Jun 2020, 08:14

1

4

3,821

by: bumpbot

06 Jul 2025, 19:32

ER

Suppose n children are going to sit, in any order, on a row of n chair

505-555 (Easy) | Combinations

505-555 (Easy) | Combinations hide tags

Bunuel

23 Feb 2015, 03:24

67

17

18,545

by: bumpbot

06 Jul 2025, 05:51

ER

There are x children and y chairs arranged in a circle in a room where

555-605 (Medium) | Combinations

555-605 (Medium) | Combinations hide tags

Bunuel

29 Mar 2021, 00:21

62

12

10,781

by: bumpbot

06 Jul 2025, 02:30

ER

GMAT Club Olympics 2025 (Day 5): A moving service charges p dollars

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

1, 2, 3, 4, 5

Bunuel

04 Jul 2025, 08:00

80

82

3,130

by: RBgmatPre

05 Jul 2025, 08:02

ER

A store purchased a Brand C computer for the same amount that it paid

705-805 (Hard) | Percent and Interest Problems, Word Problems

705-805 (Hard) | Percent and Interest Problems, Word Problems hide tags

Bunuel

07 Nov 2017, 23:45

79

7

17,190

by: bumpbot

05 Jul 2025, 01:34

ER

Around the World in 80 Questions (Day 7): When positive integer x is

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

Bunuel

25 Jul 2023, 08:00

31

8

5,408

by: bumpbot

04 Jul 2025, 22:41

ER

If the price of a certain item increased by x% from 2002 to 2003

605-655 (Medium) | Percent and Interest Problems

605-655 (Medium) | Percent and Interest Problems hide tags

Bunuel

18 Jan 2010, 01:29

82

5

22,155

by: SanchitSanjay

04 Jul 2025, 20:53

ER

If n is an integer, is n/11 an integer? (1) 7n/11 is an integer.

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

25 Sep 2018, 05:30

1

3

1,830

by: bumpbot

04 Jul 2025, 20:00

ER -1

GMAT Club Olympics 2025 (Day 4): A rental firm has only two distinct

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

1, 2...5, 6

Bunuel

03 Jul 2025, 08:00

58

102

3,965

by: HarshavardhanR

04 Jul 2025, 08:58

ER

If P and Q are positive integers, then is (P+2)(Q-1) an even number?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

12 Mar 2023, 06:53

4

2

1,787

by: bumpbot

04 Jul 2025, 04:17

ER

An outlet sold 200 chairs and 120 tables. Each chair was sold at a los

605-655 (Medium) | Percent and Interest Problems, Word Problems

605-655 (Medium) | Percent and Interest Problems, Word Problems hide tags

Bunuel

25 Feb 2020, 01:54

8

4

2,801

by: bumpbot

04 Jul 2025, 02:41

ER

Is 1/(a - b) > b - a ? (1) a < b (2) 1 < |a - b|

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

Bunuel

28 Feb 2014, 04:09

550

16

61,788

by: bumpbot

04 Jul 2025, 00:27

ER

GMAT Club Olympics 2025 (Day 3): Yesterday, on an audio streaming

805+ (Hard) | Statistics and Sets Problems, Word Problems

805+ (Hard) | Statistics and Sets Problems, Word Problems hide tags

1, 2, 3, 4, 5

Bunuel

02 Jul 2025, 08:00

83

84

3,538

by: HarshavardhanR

04 Jul 2025, 00:04

ER

GMAT Club Olympics 2025 (Day 3): At a summer camp, there are exactly

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

1, 2...5, 6

Bunuel

02 Jul 2025, 08:00

58

111

4,061

by: HarshavardhanR

03 Jul 2025, 23:24

ER

If abc 0, is a > 0? (1) 3*a/b > 0 (2) b/c^2 < 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

03 Jul 2025, 07:05

6

4

4,512

by: bebu24

03 Jul 2025, 06:49

ER

If m is a positive integer, what is the remainder when m is divided by

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

07 Feb 2024, 02:30

8

2

3,059

by: bumpbot

03 Jul 2025, 05:26

ER

If m is an integer, is m/102 an integer?

605-655 (Medium) | Multiples and Factors, Number Properties

605-655 (Medium) | Multiples and Factors, Number Properties hide tags

Bunuel

13 Feb 2015, 08:49

37

7

6,365

by: bumpbot

03 Jul 2025, 02:28

ER

If f(x) = x + x and z = y^2, is f(z) = y^2 + y?

655-705 (Hard) | Algebra, Functions and Custom Characters

655-705 (Hard) | Algebra, Functions and Custom Characters hide tags

Bunuel

06 Sep 2023, 05:00

4

2

1,685

by: amansoni5

03 Jul 2025, 00:57

ER

If an=f(n) for all integers n>0, is a4>a8?

705-805 (Hard) | Algebra, Functions and Custom Characters

705-805 (Hard) | Algebra, Functions and Custom Characters hide tags

Bunuel

23 Jan 2015, 07:40

52

12

9,803

by: bumpbot

03 Jul 2025, 00:52

ER

12 Days of Christmas GMAT Competition - Day 10: Elvin has sent wish

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

22 Dec 2023, 07:01

11

5

4,288

by: ManishaPrepMinds

03 Jul 2025, 00:47

ER

The inventory of grape jelly on a store's shelves consists only of

705-805 (Hard) | Fractions and Ratios

705-805 (Hard) | Fractions and Ratios hide tags

Bunuel

09 Sep 2024, 01:30

13

5

2,249

by: bgurveen

03 Jul 2025, 00:23

ER

Is x greater than y ? (1) x - y < |x| - |y| (2) |x| > x and |y| = y

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

Bunuel

01 May 2020, 02:13

40

15

7,213

by: bumpbot

02 Jul 2025, 23:12

ER

How much ethylene glycol antifreeze must be mixed with water to fill a

Sub 505 (Easy) | Mixture Problems

Sub 505 (Easy) | Mixture Problems hide tags

Bunuel

29 Dec 2020, 23:00

1

3

2,621

by: bumpbot

02 Jul 2025, 11:38

ER

A man collected four different samples of apple juice of four differen

Sub 505 (Easy) | Mixture Problems, Word Problems

Sub 505 (Easy) | Mixture Problems, Word Problems hide tags

Bunuel

03 Jul 2017, 05:05

9

5

4,528

by: bumpbot

02 Jul 2025, 11:21

ER

Maxine is preparing a pie for the holidays How much more of substance

Sub 505 (Easy) | Mixture Problems

Sub 505 (Easy) | Mixture Problems hide tags

Bunuel

31 May 2016, 05:49

8

5

3,548

by: bumpbot

02 Jul 2025, 10:52

ER

Three friends, A, B and C decided to have a beer party. If each of the

Sub 505 (Easy) | Mixture Problems

Sub 505 (Easy) | Mixture Problems hide tags

Bunuel

17 Oct 2018, 00:46

16

7

5,810

by: bumpbot

02 Jul 2025, 10:42

ER

GMAT Club Olympics 2025 (Day 1): In a store, 40 items are arranged on

605-655 (Medium) | Statistics and Sets Problems, Word Problems

605-655 (Medium) | Statistics and Sets Problems, Word Problems hide tags

1, 2...7, 8

Bunuel

30 Jun 2025, 08:00

131

156

5,695

by: twinkle2311

02 Jul 2025, 08:24