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

176

15

78,632

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,467

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

487,850

by: bb

29 Aug 2025, 13:27

ER

An estimate of an actual data value has an error of p percent if p = |

805+ (Hard) | Arithmetic +2 tags

805+ (Hard) | Arithmetic, Percent and Interest Problems, Word Problems hide tags

parkhydel

28 Apr 2020, 05:06

615

18

48,523

by: Bunuel

25 Nov 2025, 04:37

ER

Each of the 120 students in a certain dormitory is either a junior or

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

parkhydel

28 Apr 2020, 04:26

14

2

9,082

by: bumpbot

30 Sep 2025, 08:27

ER

Maria left home 1/4 hour after her husband and drove over the same

555-605 (Medium) | Distance and Speed Problems

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

parkhydel

28 Apr 2020, 04:45

226

18

24,848

by: Dream009

21 Aug 2025, 23:50

ER

A certain ski shop sold 125 pairs of skis and 100 pairs of ski boots

Sub 505 (Easy) | Statistics and Sets Problems, Word Problems

Sub 505 (Easy) | Statistics and Sets Problems, Word Problems hide tags

parkhydel

28 Apr 2020, 04:50

21

3

10,619

by: bumpbot

05 Aug 2025, 05:53

ER

Is the standard deviation of the numbers in list R less than the stand

705-805 (Hard) | Statistics and Sets Problems

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

parkhydel

28 Apr 2020, 04:52

308

16

25,294

by: bumpbot

24 Jul 2025, 13:04

ER

Machines K, M, and N, each working alone at its constant rate, produce

705-805 (Hard) | Work and Rate Problems

705-805 (Hard) | Work and Rate Problems hide tags

1, 2

parkhydel

28 Apr 2020, 05:19

459

21

32,210

by: SudsMeister

17 May 2025, 09:09

ER

What is the median of the nine consecutive even integers in a certain

555-605 (Medium) | Statistics and Sets Problems

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

parkhydel

28 Apr 2020, 05:01

133

19

18,142

by: bumpbot

09 Apr 2025, 10:29

ER

What is the value of z in the figure above?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

parkhydel

28 Apr 2020, 08:06

16

8

14,113

by: bumpbot

26 Mar 2023, 11:09

ER

In the figure shown, is l1||l2 ?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

parkhydel

06 May 2020, 17:02

42

8

13,582

by: Kimberly77

21 Jan 2023, 14:23

ER

Is x + y > z ? (1) z > y (2) z > x

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Paris75003

06 Oct 2021, 07:01

3

1,656

by: Bunuel

06 Oct 2021, 07:34

ER

If x < 200, what is the value of x?

Poor Quality

Poor Quality hide tags

Papist

27 Jun 2020, 00:10

2

4

1,780

by: mSKR

27 Jun 2020, 10:50

ER

What is the remainder when x is divided by 9?

Poor Quality

Poor Quality hide tags

papagorgio

19 May 2017, 08:02

4

3

3,069

by: papagorgio

19 May 2017, 08:02

How many people received a raise of greater than 5%?

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

papagorgio

18 May 2017, 19:26

2

4

1,829

by: amanvermagmat

18 May 2017, 22:11

ER

Two pieces of fruit are selected out of a group of 8 pieces

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Pansi

09 Nov 2012, 01:34

93

8

13,210

by: bumpbot

03 Sep 2025, 00:57

ER

The consumer price index in Zeropia in 2009 relative to the

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

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

Pansi

08 Nov 2012, 16:21

33

6

11,545

by: bumpbot

10 Jun 2025, 15:10

ER

If P, Q, and R are positive integers, what is the remainder

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

Pansi

29 Oct 2012, 05:35

35

5

8,008

by: GMATBusters

30 Aug 2024, 07:43

ER

Does the product jkmn equal 1?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

paki

07 Oct 2022, 08:18

13

8

16,099

by: bumpbot

05 Aug 2025, 10:17

ER

Is x^2 > 1/x? (1) x^2 > x (2) 1 > 1/x

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

paddy41

29 Apr 2017, 01:36

26

12

8,992

by: bumpbot

07 Feb 2024, 23:01

ER

A box contains red balls, white balls, and yellow balls. If a ball is

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

pacifist85

06 Feb 2015, 12:12

4

5

5,634

by: bumpbot

29 Jan 2026, 00:06

ER

At what speed was Erik running when he was at the halfway point of his

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

pacifist85

06 Feb 2015, 09:52

26

13

9,576

by: bumpbot

12 Aug 2024, 07:03

ER

What are the coordinates of point B ?

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

pacifist85

06 Feb 2015, 13:32

33

12

16,255

by: bumpbot

12 Feb 2024, 05:46

ER

In the same period of time that a sports car

655-705 (Hard) | Distance and Speed Problems

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

pablovaldesvega

26 Nov 2023, 06:12

86

12

13,688

by: KarishmaB

15 Sep 2025, 00:40

ER

Is P + Q > R + S ?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

paam0101

09 Jul 2010, 13:13

26

7

11,553

by: Neeraj5

21 Jun 2025, 08:03

ER

Is x(x+1)(x+2) divisible by 4 (where x is an integer)?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

paam0101

16 Jul 2010, 12:26

2

10

4,045

by: bumpbot

20 Jun 2019, 12:09

ER

If 8 < k < 8, is k < 2 ?

Poor Quality

Poor Quality hide tags

paam0101

12 Jul 2010, 14:33

4

4,320

by: vannbj

15 Jul 2010, 12:24

ER

In any twenty-four-hour period, a certain faulty clock gains anywhere

805+ (Hard) | Non-Math Related, Word Problems

805+ (Hard) | Non-Math Related, Word Problems hide tags

p456

03 Nov 2023, 06:21

173

17

15,408

by: Gmat860sanskar

10 Apr 2026, 11:12

ER

All the T-shirts a clothing store stocks are plainand they are all in

605-655 (Medium) | Inequalities, Word Problems

605-655 (Medium) | Inequalities, Word Problems hide tags

p456

31 Oct 2023, 08:31

104

9

15,393

by: Dream009

27 Dec 2025, 20:27

ER

If an ≠ 0 and n is a positive integer, is n odd?

705-805 (Hard) | Exponents +2 tags

705-805 (Hard) | Exponents, Inequalities, Number Properties hide tags

p2bhokie

12 Oct 2014, 13:16

80

14

16,234

by: bumpbot

19 Sep 2023, 07:47

ER

A grocery store wanted to repackage all of the eggs that were in carto

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Other

12 Jun 2010, 08:08

6

4

6,120

by: Bunuel

12 Mar 2023, 05:04

Given a triangle ABC as in the figure. The area of the triangle AFD is

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

ostrick5465

18 Dec 2023, 05:55

1

1,035

by: riuu

09 Jan 2024, 10:58

ER

ABCD is rectangular. The area of BMC is 36 cm^2. Calculate the area of

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

ostrick5465

16 Sep 2021, 02:58

11

3

1,993

by: bumpbot

14 Jan 2023, 01:30

ER

If the standard deviation of Set Y is 4, what are the

505-555 (Easy) | Statistics and Sets Problems

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

oss198

03 Aug 2014, 15:52

32

6

11,527

by: bumpbot

05 Dec 2025, 02:19

ER

Is positive integer n 1 a multiple of 3?

705-805 (Hard) | Multiples and Factors

705-805 (Hard) | Multiples and Factors hide tags

Orange08

25 Sep 2010, 11:06

68

11

16,790

by: bumpbot

19 Jun 2025, 10:53

ER

How many odd integers are greater than the integer x and

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Orange08

06 Sep 2010, 13:09

381

18

73,572

by: bumpbot

21 Apr 2025, 21:30

ER

Leo can buy a certain computer for p1 dollars in State A, where the sa

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

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

Orange08

05 Sep 2010, 06:58

271

16

39,393

by: Bunuel

21 Apr 2025, 07:56

ER

A jar contains 8 red marbles and y white marbles. If Joan takes 2 rand

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

1, 2

Orange08

26 Sep 2010, 12:55

264

22

48,269

by: bumpbot

19 Apr 2025, 12:21

ER

If x and y are integers and x > 0, is y > 0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Orange08

20 Oct 2019, 00:31

100

12

28,931

by: hgodhani

15 Feb 2025, 19:36

ER

If x and y are positive integers, is xy a multiple of 8?

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

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

Orange08

21 Oct 2019, 01:18

180

14

32,554

by: bumpbot

22 Jan 2025, 02:34

ER

In the figure above, if x and y are each less than 90 and PS

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Orange08

05 Sep 2010, 12:50

208

11

53,907

by: bumpbot

29 Nov 2024, 01:22

ER

Lines k and m are parallel to each other. Is the slope of

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Orange08

05 Sep 2010, 06:55

215

10

38,471

by: bumpbot

11 Nov 2024, 17:57

ER

Is the integer n even? (1) n – 5 is an odd integer (2) n/5 is an even

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Orange08

11 Sep 2010, 15:21

11

4

13,104

by: bumpbot

23 Apr 2024, 19:47

ER

n is an integer greater than or equal to 0. The sequence tn

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

Onell

19 Jul 2021, 13:45

131

14

30,960

by: bumpbot

28 Aug 2025, 07:11

If n is a positive integer, what is the value of n?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

OmkarSheth008

07 Jul 2023, 10:44

3

4

1,254

by: Akshay97

08 Jul 2023, 10:19

ER

If x and y are positive integers, is x a multiple of y?

705-805 (Hard) | Multiples and Factors, Number Properties

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

Omar7235

24 Mar 2017, 19:14

24

9

4,070

by: bumpbot

01 Jul 2024, 20:16

ER

If a rectangular region has perimeter P inches and area A sq

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

1, 2

olifurlong

17 Jun 2021, 00:54

615

38

105,571

by: bumpbot

28 Jan 2025, 14:05

ER

What is the unit digit of x^3? (1) x is even (2) x^3 is between 10 and

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

OhMy

20 Feb 2020, 15:56

5

1,318

by: fireagablast

21 Feb 2020, 19:07

ER

What is the average of A, B, and C?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

ocavon

25 Jun 2015, 09:25

15

2

8,089

by: bumpbot

20 Jul 2025, 23:20

ER

In the xy coordinate plane, does the point (3,4) lie on line

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

obs23

15 Apr 2013, 05:07

25

4

6,593

by: bumpbot

09 Dec 2023, 20:31

ER

ABC and AED are triangles with BC and ED perpendicular to AB

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

obs23

14 Oct 2013, 05:46

5

2

4,799

by: CEdward

16 Feb 2021, 19:25

ER

ABC and AED are triangles with BC parallel to ED. Find the a

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

obs23

11 Oct 2013, 03:43

6

9

6,932

by: Nunuboy1994

08 Sep 2017, 18:18