GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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

Bunuel

25 Oct 2022, 08:11

179

15

79,419

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

858

24

188,928

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,598

by: bb

29 Aug 2025, 13:27

ER

How long did it take Carlos to drive nonstop from his home to Atlanta

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

Bunuel

19 Jun 2024, 01:30

7

4

1,691

by: bumpbot

11 Dec 2025, 01:24

ER

What is the average of a set of 6 consecutive odd integers ?

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

Bunuel

08 Jan 2023, 09:53

7

3

1,998

by: Bunuel

11 Dec 2025, 04:06

ER

How many people attended today's lecture?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

11 Dec 2025, 02:24

2

491

by: Dereno

11 Dec 2025, 04:09

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Is z/12 - 9 an integer? (1) (z + 24)/12 is an integer (2) z is a

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

18 Mar 2020, 10:15

1

3

1,878

by: bumpbot

11 Dec 2025, 20:19

ER

A large bin contains forty colored balls numbered 161 to 200. If each

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

21 Nov 2023, 02:30

4

3

1,826

by: bumpbot

12 Dec 2025, 04:42

ER

Fees for the late return of a rental item are equal to the normal hour

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

15 Aug 2019, 06:51

3

4

1,596

by: bumpbot

12 Dec 2025, 06:57

ER

a, b, c, d, and e are five numbers such that a b c d e and e -

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

15 Feb 2021, 01:15

16

7

10,813

by: bumpbot

12 Dec 2025, 07:11

ER

If P and R were solutions of water and ammonia and if solution S consi

555-605 (Medium) | Mixture Problems

555-605 (Medium) | Mixture Problems hide tags

Bunuel

24 Apr 2023, 01:30

10

3

2,570

by: Bunuel

12 Dec 2025, 08:33

ER

What is the total cost of six pencils and four notebooks?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

11 Dec 2025, 23:39

3

534

by: Dereno

12 Dec 2025, 10:16

ER

A certain economics report defines a middle-income family as a family

655-705 (Hard) | Statistics and Sets Problems, Word Problems

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

Bunuel

15 Sep 2020, 08:45

44

9

10,618

by: gchandana

12 Dec 2025, 22:30

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Around the World in 80 Questions (Day 6): If x and y are nonzero

505-555 (Easy) | Absolute Values

505-555 (Easy) | Absolute Values hide tags

Bunuel

24 Jul 2023, 08:00

8

5

5,387

by: bumpbot

13 Dec 2025, 02:41

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Is |a| > |b|? (1) 1/(a − b) > 1/(b − a) (2) a + b < 0

805+ (Hard) | Absolute Values, Inequalities

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

Bunuel

15 Jan 2021, 02:17

27

5

6,431

by: imaityaroy

13 Dec 2025, 23:19

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A certain employee is paid $6 per hour for an 8-hour workday. If the

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Dec 2014, 08:52

6

9,879

by: bumpbot

14 Dec 2025, 03:20

ER

If a real estate agent received a commission of 6 percent of the

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

12 Dec 2014, 07:21

18

8

78,486

by: bumpbot

14 Dec 2025, 04:13

ER

If sequence Q has four terms: x, 12, y, and 20, is it true that the me

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Bunuel

06 Nov 2019, 02:33

19

8

4,089

by: bumpbot

14 Dec 2025, 04:38

ER

Bottles A and B contain alcohol-water solutions in ratios of 1:3 and

555-605 (Medium) | Mixture Problems

555-605 (Medium) | Mixture Problems hide tags

Bunuel

11 Oct 2024, 01:30

12

4

2,427

by: bumpbot

14 Dec 2025, 05:20

ER

The total cost of a car rental at Company X is equal to a base fee per

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

10 Oct 2023, 01:30

5

2

2,069

by: bumpbot

14 Dec 2025, 06:33

ER

Gurdeep is organizing his sunflower seeds, petunia seeds, and daffodil

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

20 Jan 2021, 01:15

5

6

2,390

by: bumpbot

14 Dec 2025, 06:47

ER

If x and yare positive, is x/y greater than 1 ?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

24 Sep 2012, 05:23

32

14

19,282

by: bumpbot

14 Dec 2025, 07:19

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If x and y are positive, what is the value of y ?

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

15 May 2018, 01:47

7

6

5,215

by: bumpbot

14 Dec 2025, 19:04

ER

A long rope was divided to three different parts. What is the length

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

10 Apr 2024, 01:30

2

1,145

by: bumpbot

14 Dec 2025, 19:05

ER

GMAT Club World Cup 2022 (DAY 4): How many arch-enemies does Ronaldo

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

Bunuel

14 Jul 2022, 08:00

50

14

7,071

by: bumpbot

14 Dec 2025, 20:52

ER

The median age of 15 children in group A was 12. The median age of 19

655-705 (Hard) | Statistics and Sets Problems, Word Problems

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

Bunuel

13 Oct 2021, 06:00

17

5

5,533

by: Bunuel

14 Dec 2025, 23:27

ER

Did Sally pay less than x dollars, including sales tax, for her

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

16 Dec 2014, 05:28

19

4

12,067

by: Saurav1408

14 Dec 2025, 23:35

ER

In the period between 1975 and 1985, the population of each of the

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

12 Dec 2024, 01:30

9

2

1,618

by: bumpbot

15 Dec 2025, 05:25

ER

Red, white, blue, and black balls are arranged in a row such that the

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

Bunuel

13 Apr 2023, 01:30

7

3

2,239

by: bumpbot

15 Dec 2025, 18:25

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Is xy < 0? (1) |x − y| > |x| − |y| (2) x > y

805+ (Hard) | Absolute Values, Inequalities

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

Bunuel

20 Apr 2018, 06:13

78

12

11,114

by: bumpbot

16 Dec 2025, 18:49

ER

In a certain set of 300 stocks, each is priced at either $50, $100, or

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

28 Aug 2015, 02:33

29

4

3,560

by: bumpbot

16 Dec 2025, 20:29

ER

A bookstore bought 24 books, each at an equal price. Each of the first

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

06 Sep 2024, 01:30

14

4

2,348

by: bumpbot

16 Dec 2025, 22:49

ER

Set P consists of 5 items. The standard deviation of the items in Set

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Bunuel

21 Jun 2021, 01:30

11

7

4,211

by: bumpbot

16 Dec 2025, 22:55

ER

The average (arithmetic mean) of the original six prices for six coats

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

06 Apr 2022, 08:30

15

2

3,724

by: Annukiran

16 Dec 2025, 23:57

ER

On January 1st Thomas deposited $2,000 into an interest bearing checki

605-655 (Medium) | Percent and Interest Problems

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

Bunuel

28 Oct 2015, 07:11

12

10

6,163

by: Bunuel

17 Dec 2025, 00:11

ER

12 Days of Christmas GMAT Competition 2025 - Day 1: A painter mixes

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

1, 2, 3, 4

Bunuel

15 Dec 2025, 09:00

61

69

2,293

by: Edwin555

17 Dec 2025, 01:01

ER

At a certain fiorist shop, roses can be purchased either individually

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

11 Aug 2021, 08:30

14

4

3,810

by: Annukiran

17 Dec 2025, 02:23

ER

Waugh jogged to a restaurant at x miles per hour, and jogged back home

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

Bunuel

16 Sep 2024, 01:30

4

3

1,896

by: bumpbot

17 Dec 2025, 06:46

ER

A certain building has only 2-room and 3-room apartments to rent. If

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

23 Jul 2019, 08:00

17

5

8,162

by: bumpbot

17 Dec 2025, 07:30

ER

12 Days of Christmas GMAT Competition 2025 - Day 2: At a certain

605-655 (Medium) | Statistics and Sets Problems

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

1, 2, 3, 4, 5

Bunuel

16 Dec 2025, 09:00

79

80

2,076

by: forestmayank

17 Dec 2025, 08:28

ER

12 Days of Christmas GMAT Competition 2025 - Day 2: A survey of 90

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

1, 2, 3, 4, 5

Bunuel

16 Dec 2025, 09:00

71

89

2,303

by: KunchiGoks

17 Dec 2025, 09:00

ER

If x1, x2, x3… xn is a sequence such that xn=n/2 for all values x≥1, i

655-705 (Hard) | Inequalities, Sequences

655-705 (Hard) | Inequalities, Sequences hide tags

Bunuel

28 Sep 2017, 04:56

12

4

5,299

by: bumpbot

17 Dec 2025, 09:51

ER

In Town T, there is a 5% sales tax on food purchases, a 10% sales tax

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

06 Apr 2022, 06:00

11

2

4,039

by: bumpbot

17 Dec 2025, 11:26

ER

The average (arithmetic mean) of a list of six numbers is equal to 0.

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

06 Apr 2022, 02:00

9

2

3,030

by: bumpbot

17 Dec 2025, 17:53

ER

If S is a set of distinct positive multiples of 5, what is the smalles

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

24 Aug 2015, 23:42

16

7

4,741

by: bumpbot

17 Dec 2025, 19:20

ER

Is x^2 < x^3? (1) x < x^2 (2) x < 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

12 May 2022, 01:30

8

5

2,789

by: bumpbot

17 Dec 2025, 20:08

ER

The difference between Larry's height and John's height is twice

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

17 May 2021, 01:30

71

6

21,283

by: HarshavardhanR

17 Dec 2025, 21:32

ER

12 Days of Christmas GMAT Competition 2025 - Day 3: An inspection cart

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

1, 2, 3, 4

Bunuel

17 Dec 2025, 09:00

62

65

1,914

by: ravi1522

18 Dec 2025, 08:52

ER

A cable company sells exactly 3 service packages: Internet only, TV

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

06 Aug 2023, 05:00

108

6

22,950

by: bumpbot

18 Dec 2025, 22:31

ER

A jeweler sold a watch at a profit. Was his percent profit on the sale

705-805 (Hard) | Percent and Interest Problems

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

Bunuel

23 Jul 2024, 01:30

7

2

1,535

by: bumpbot

19 Dec 2025, 01:27

ER

A music festival took place over two days, Saturday and Sunday. What

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

30 Jun 2018, 23:54

39

14

12,727

by: bumpbot

19 Dec 2025, 01:58

ER

If Set S consists of 8 numbers taken from Set B, what is the standard

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Bunuel

07 Apr 2021, 02:59

8

2

2,062

by: bumpbot

19 Dec 2025, 03:24

ER

At a graduation ceremony, some students earned bachelors in science de

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

21 Apr 2015, 06:10

25

7

8,294

by: bumpbot

19 Dec 2025, 06:14