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

178

15

78,989

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

857

24

188,683

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

488,185

by: bb

29 Aug 2025, 13:27

ER

What is the units digit of the non-negative integer y?

705-805 (Hard) | Fractions and Ratios, Number Properties

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

Bunuel

25 Nov 2014, 08:30

14

11

5,295

by: bumpbot

15 Sep 2025, 16:13

ER

At a school, one-fourth of the teachers are male and half of the teach

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

15 Sep 2025, 01:02

3

2

524

by: Souradeep17

15 Sep 2025, 18:05

ER

If x and y are positive integers, is x^17 - 2*y^3 odd?

705-805 (Hard) | Multiples and Factors +2 tags

705-805 (Hard) | Multiples and Factors, Number Properties, Statistics and Sets Problems hide tags

Bunuel

15 Dec 2020, 01:15

10

6

2,397

by: bumpbot

15 Sep 2025, 18:06

ER

Truckers Jack and Dave drove their truck along a straight route.

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

15 Sep 2025, 01:03

2

3

517

by: Missinga

15 Sep 2025, 20:50

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How many hours does it take 12 machines with identical production rate

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

17 Dec 2014, 07:58

16

13

9,715

by: bumpbot

16 Sep 2025, 03:43

ER

At a certain department store present-wrapping counter, each

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

chiragr

20 Oct 2013, 09:56

85

7

16,349

by: bumpbot

16 Sep 2025, 05:08

ER

If xy 0, is x^y > 0 ?

655-705 (Hard) | Exponents +2 tags

655-705 (Hard) | Exponents, Inequalities, Roots hide tags

Bunuel

20 Jul 2014, 11:23

63

11

11,930

by: bumpbot

16 Sep 2025, 06:24

ER

In a certain sequence, each term, starting with the 3rd term

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

mun23

27 Mar 2013, 22:53

116

16

29,811

by: bumpbot

16 Sep 2025, 07:36

ER

If n is a positive integer, what is the units digit of n^28? (I) n is

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Russ19

28 Apr 2020, 09:08

11

3

1,648

by: bumpbot

16 Sep 2025, 08:46

ER

In the sequence of nonzero numbers t1, t2, t3, , tn, , tn+1

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

quantum

18 Jun 2008, 10:23

58

10

33,657

by: bumpbot

16 Sep 2025, 09:23

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Set S consist of the values 11, -9, 100, 0, x, and y. if x not equal

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

15 Jul 2018, 21:41

10

3

3,474

by: bumpbot

16 Sep 2025, 09:35

ER

A set contains the following 5 numbers: a^2, a^5, a, a/2, a/5. Is the

805+ (Hard) | Statistics and Sets Problems

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

1, 2

akhil911

25 Mar 2016, 04:55

174

26

22,868

by: bumpbot

16 Sep 2025, 09:59

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Edwin is planning to drive from Boston to New Orleans. By what percent

605-655 (Medium) | Distance and Speed Problems

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

Bunuel

06 Oct 2014, 08:53

186

13

24,865

by: bumpbot

16 Sep 2025, 10:21

ER

2001, the closing price of stock A and stock B are the same.

655-705 (Hard) | Percent and Interest Problems

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

mehdiov

20 Aug 2010, 11:51

80

8

14,372

by: bumpbot

16 Sep 2025, 10:40

ER

How much did it cost, per mile, for the diesel consumed by Truck T for

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

16 Sep 2025, 04:05

3

491

by: Souradeep17

16 Sep 2025, 12:55

ER

If Martin bought two one-pound pieces of same cake in a scheme

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

16 Sep 2025, 04:06

5

3

400

by: Souradeep17

16 Sep 2025, 12:59

ER

If n is a positive integer, can it be written as difference

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

goodyear2013

26 Mar 2014, 08:15

6

4

5,643

by: bumpbot

16 Sep 2025, 15:15

ER

If the ratio of the number of teachers to the number of students

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

Walkabout

06 Dec 2012, 04:50

334

19

56,750

by: bumpbot

16 Sep 2025, 18:02

ER

A certain high school with a total enrollment of 900 student

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

21 Oct 2022, 07:41

84

5

46,210

by: bumpbot

16 Sep 2025, 23:36

ER

The top surface area of a square tabletop was changed so that one of

655-705 (Hard) | Geometry, Percent and Interest Problems

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

TheRob

07 Sep 2009, 06:41

161

18

31,122

by: Bunuel

17 Sep 2025, 00:22

ER

If k is a 3 digit positive number, what is the hundred digit

655-705 (Hard) | Fractions and Ratios

655-705 (Hard) | Fractions and Ratios hide tags

anilnandyala

09 Nov 2010, 06:19

161

11

21,930

by: bumpbot

17 Sep 2025, 00:37

ER

Chan and Micko drove separate cars along the entire length of a certai

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

19 Sep 2022, 08:26

6

2

2,890

by: AdarshSambare

17 Sep 2025, 02:38

ER

If r is a constant a_n = rn for all positive integers n, for how many

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

Fedemaravilla

27 Nov 2017, 03:27

51

15

16,467

by: AdarshSambare

17 Sep 2025, 02:46

ER

In a group of 250 adults, is the number of married (not necessarily to

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

20 Feb 2021, 09:10

10

9

2,392

by: bumpbot

17 Sep 2025, 02:58

In a set S={x,12,12,12,14,10,8}, is x positive? 1) The mode of S is gr

605-655 (Medium) | Statistics and Sets Problems

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

TheUltimateWinner

11 Aug 2019, 09:37

7

2

1,719

by: bumpbot

17 Sep 2025, 03:20

ER

If the Lincoln Library's total expenditure for books, periodicals, and

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

05 Sep 2017, 00:02

16

4

10,934

by: AdarshSambare

17 Sep 2025, 03:41

ER

Until this coming April, the price of all Albanian products will equal

655-705 (Hard) | Percent and Interest Problems

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

DisciplinedPrep

26 Aug 2020, 23:32

9

3

2,482

by: IanStewart

17 Sep 2025, 08:11

ER

The total volume of a wooden wine container and a plastic wine contain

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

15 Sep 2021, 01:30

7

5

2,951

by: bumpbot

17 Sep 2025, 09:53

ER

To understand the Population Density (Population divided by area), in

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

17 Sep 2025, 01:15

3

2

650

by: Souradeep17

17 Sep 2025, 11:19

ER

What is the value of the two-digit number TU

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

fireinbelly

30 Apr 2013, 05:45

20

6

8,615

by: bumpbot

17 Sep 2025, 12:58

ER

What is the value of positive integer p? (1) 300 multiplied by p is

655-705 (Hard) | Multiples and Factors, Number Properties

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

Bunuel

28 Jun 2023, 01:30

3

1,384

by: bumpbot

17 Sep 2025, 13:04

ER

The average of 5 different numbers is 14. What is the average (arithme

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

30 Oct 2019, 21:33

3

7

3,812

by: bumpbot

17 Sep 2025, 16:50

ER

A dealer sold good for $X. If Y percent was deducted for taxes and the

555-605 (Medium) | Percent and Interest Problems, Word Problems

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

Bunuel

17 Sep 2025, 01:14

5

3

662

by: findingmyself

17 Sep 2025, 17:14

ER

An increasing sequence consists of 4 negative integers and 6 positive

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Bunuel

05 Jan 2022, 03:00

5

2

2,664

by: crystxl

17 Sep 2025, 19:52

ER

A family's savings for a month is calculated by subtracting its total

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

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

amanvermagmat

21 Jul 2018, 11:03

6

2

2,903

by: bumpbot

17 Sep 2025, 20:36

ER

The price of a certain property increased by 10% in the first year

555-605 (Medium) | Percent and Interest Problems, Word Problems

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

Bunuel

02 Aug 2023, 01:30

5

4

5,980

by: KarishmaB

17 Sep 2025, 21:22

ER

If the ratio of brown cars to blue cars in a certain parking lot is 2:

705-805 (Hard) | Fractions and Ratios

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

Bunuel

25 Jul 2016, 10:10

22

6

6,379

by: Pranavsawant

17 Sep 2025, 21:23

ER

If a and b are positive integers, and a < b, does the decimal expansio

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

nislam

05 Feb 2022, 10:38

10

5

1,885

by: bumpbot

17 Sep 2025, 21:29

ER

Is n the square of an integer?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

23 Jan 2017, 09:29

5

7

2,474

by: bumpbot

17 Sep 2025, 21:48

ER

If x ≤ 4 and y ≥ 10, what is the range of the numbers in the set {5, 8

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

22 Dec 2015, 03:18

14

8

6,449

by: bumpbot

17 Sep 2025, 21:50

ER

11 New OG Logic-Based DS for GMAT Focus; Analysis of OG22 vs. 2024

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

GMATCoachBen

10 Mar 2024, 22:35

20

3

6,480

by: bumpbot

17 Sep 2025, 23:51

ER

If #x# represents the smallest even integer greater than or equal to x

605-655 (Medium) | Absolute Values +2 tags

605-655 (Medium) | Absolute Values, Functions and Custom Characters, Inequalities hide tags

Bunuel

14 Sep 2015, 01:48

28

8

7,144

by: bumpbot

18 Sep 2025, 00:50

ER

If both x and y are nonzero numbers, what is the value of y/x?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

09 Jan 2014, 06:52

65

17

27,501

by: bumpbot

18 Sep 2025, 02:06

ER

In the xy-plane, at what two points does the graph of y=(x+a)(x+b)

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

1, 2

misterJJ2u

05 Jun 2019, 07:29

939

37

196,334

by: bumpbot

18 Sep 2025, 02:24

ER

If sequence S has 120 terms, what is the 105th term of S?

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

BrainLab

19 Sep 2015, 14:27

47

12

29,391

by: bumpbot

18 Sep 2025, 03:53

ER

In the figure shown, what is the area of triangular region PRT?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

1, 2

yuvrajsub

22 Jul 2019, 09:41

378

21

76,325

by: bumpbot

18 Sep 2025, 04:28

ER

Is |x| > x ? (1) x > |y| (2) x is a non-negative integer

655-705 (Hard) | Absolute Values, Inequalities

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

chetan2u

21 Feb 2017, 07:54

8

7

3,471

by: bumpbot

18 Sep 2025, 04:36

ER

The cost C, in dollars of producing x units of a certain commodity is

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

inakihernandez

24 Apr 2016, 11:36

160

16

48,143

by: bumpbot

18 Sep 2025, 04:55

ER

For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

03 Feb 2015, 09:43

59

13

16,740

by: dhruvie

18 Sep 2025, 05:03

ER

If x is a prime number, what is the number of factors of 75x?

655-705 (Hard) | Multiples and Factors

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

Bunuel

22 May 2023, 09:30

7

1,978

by: bumpbot

18 Sep 2025, 05:57