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

176

15

78,631

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,466

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

487,849

by: bb

29 Aug 2025, 13:27

ER

A contractor combined x tons of a gravel mixture that contained 10 per

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

1, 2

ugimba

11 Jun 2019, 04:06

359

20

75,348

by: bumpbot

12 Jun 2025, 01:14

ER

Dean of the Imperial College, W wants to sch

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

1, 2

GMATBusters

25 Apr 2020, 19:01

7

20

3,171

by: iamjatinagrawal

16 Jun 2025, 03:23

ER

A country's per capita national debt is its national debt divided by

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

1, 2

gmatt1476

21 Sep 2019, 15:12

212

20

24,268

by: Pablopikachu

18 Jun 2025, 01:44

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If M and N are integers, is ((10^M)) + N)/3 an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

1, 2

sprtng

27 Jul 2015, 14:45

47

20

14,572

by: bumpbot

22 Jun 2025, 12:28

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At a certain company, a test was given to a group of men and women see

605-655 (Medium) | Statistics and Sets Problems

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

1, 2

rajman41

11 Nov 2017, 07:54

567

20

52,611

by: bumpbot

09 Jul 2025, 00:38

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A certain truck uses 1/12 +kv^2 gallons of fuel per mile when its spee

Sub 505 (Easy) | Distance and Speed Problems, Word Problems

Sub 505 (Easy) | Distance and Speed Problems, Word Problems hide tags

1, 2

BrainLab

26 Jul 2021, 08:37

158

20

35,689

by: bumpbot

16 Jul 2025, 04:59

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If c and d are integers, is c even?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

1, 2

zaarathelab

30 Jan 2010, 13:15

184

20

30,755

by: agrasan

16 Jul 2025, 20:47

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In a certain group of 50 people, how many are doctors who have a law

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

1, 2

Bunuel

26 Jun 2017, 02:21

148

20

32,847

by: KalleAbhi

19 Jul 2025, 04:51

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In the rectangular coordinate system, are the points (r,s) and (u,v)

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

1, 2

calvinhobbes

06 Feb 2019, 04:09

318

20

42,338

by: bumpbot

19 Jul 2025, 16:28

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Ralph is giving out Valentine’s Day cards to his friends.

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

1, 2

honchos

16 Sep 2013, 02:24

52

20

9,157

by: bumpbot

02 Aug 2025, 15:42

ER

Two points, N and Q (not shown), lie to the right of point M on line l

605-655 (Medium) | Fractions and Ratios

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

1, 2

Bunuel

20 Aug 2025, 23:54

302

20

51,316

by: Shreyaarora

20 Aug 2025, 23:35

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Is x greater than 1? (1) 1/x >1 (2) 1/x^5 > 1/x^3

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

1, 2

sandal85

06 Jun 2012, 21:20

67

20

26,996

by: bumpbot

27 Aug 2025, 13:09

ER

Mary persuaded n friends to donate $500 each to her election

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

1, 2

seofah

07 Apr 2009, 15:51

324

20

55,438

by: bumpbot

20 Sep 2025, 08:10

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A set consists of n consecutive integers in which the smalle

805+ (Hard) | Statistics and Sets Problems

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

1, 2

vibhav

21 Jul 2013, 07:22

221

20

23,359

by: bumpbot

30 Sep 2025, 06:20

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Store S sold a total of 90 copies of a certain book during

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

1, 2

Hussain15

05 Oct 2025, 01:46

200

20

40,186

by: Bunuel

05 Oct 2025, 01:46

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If l and k are lines in the xy-plane, is the product of the slopes of

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

1, 2

blog

31 Jan 2008, 19:24

77

20

38,266

by: bumpbot

06 Oct 2025, 23:45

ER

The circular base of an above-ground swimming pool lies in

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

1, 2

Bunuel

18 Feb 2014, 03:50

108

20

33,471

by: saepenulla

17 Oct 2025, 06:40

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The sum of n consecutive positive integers is 45. What is

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

1, 2

enigma123

12 Jun 2013, 03:33

185

20

40,939

by: bumpbot

25 Oct 2025, 08:03

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For any integers x and y, min(x, y) and max(x, y) denote the

655-705 (Hard) | Functions and Custom Characters, Min-Max Problems

655-705 (Hard) | Functions and Custom Characters, Min-Max Problems hide tags

1, 2

snkrhed

29 May 2010, 13:23

559

20

121,609

by: bumpbot

28 Oct 2025, 22:54

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If 3x + 5 < x + 11, is x prime?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

1, 2

monir6000

20 Jan 2013, 05:30

98

20

19,831

by: bumpbot

06 Nov 2025, 10:57

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Two friends, X and Y start from two points M and N and move towards

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

1, 2

Bunuel

06 Jul 2017, 02:33

63

20

10,064

by: bumpbot

20 Nov 2025, 06:15

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The point A, B, C, and D are on the number line, not necessa

605-655 (Medium) | Geometry, Number Properties

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

1, 2

ronybtl

27 May 2014, 07:40

432

20

133,396

by: bumpbot

28 Nov 2025, 23:11

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Let S be a set of outcomes and let A and B be events with outcomes in

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

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

1, 2

gmatt1476

21 Sep 2019, 15:28

591

20

38,116

by: Bunuel

06 Dec 2025, 06:21

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Is |2a − 3b| < |a − b| + |a − 2b|? (1) b = 3 (2) a < b

805+ (Hard) | Absolute Values, Inequalities

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

1, 2

galiya

01 Aug 2012, 07:20

203

20

27,275

by: bumpbot

08 Dec 2025, 23:20

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Is x > 0 ? (1) x < x^2 (2) x < x^3

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

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rxs0005

21 Sep 2010, 08:14

43

20

14,158

by: SanuBest

14 Dec 2025, 00:10

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If Jim earns x dollars per hour, it will take him 4 hours to

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

1, 2

mojorising800

05 Jul 2011, 14:23

50

20

19,878

by: bumpbot

17 Dec 2025, 01:31

ER

How many different prime numbers are factors of the positive integer n

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

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

1, 2

xyzgmat

05 Jun 2019, 03:04

652

20

145,834

by: bumpbot

18 Dec 2025, 20:37

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Yesterday Bookstore B sold twice as many softcover books as hardcover

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

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

1, 2

parkhydel

28 Apr 2020, 04:59

423

20

40,120

by: bumpbot

28 Dec 2025, 08:18

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Last year, in a certain housing development, the average (arithmetic m

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

1, 2

Bunuel

20 Jun 2018, 00:15

203

20

34,503

by: bumpbot

29 Dec 2025, 08:32

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If p is a prime number greater than 2, what is the value of p ?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

1, 2

aljatar

28 Mar 2010, 05:56

142

20

62,875

by: bumpbot

30 Dec 2025, 09:12

ER

Six shipments of machine parts were shipped from a factory on two

705-805 (Hard) | Fractions and Ratios, Word Problems

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

1, 2

Walkabout

14 Dec 2012, 06:24

676

20

70,072

by: Bunuel

03 Jan 2026, 04:02

ER

In the figure above, PQR and STU are identical equilateral triangles,

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

1, 2

Bunuel

26 Oct 2015, 10:04

352

20

54,103

by: bumpbot

10 Jan 2026, 04:25

ER

What is the average (arithmetic mean) annual salary of the 6 employees

605-655 (Medium) | Statistics and Sets Problems

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

1, 2

Bunuel

03 Aug 2018, 11:13

209

20

51,658

by: bumpbot

16 Jan 2026, 10:18

ER

Did it take Pei more than 2 hours to walk a distance of 10 miles along

605-655 (Medium) | Distance and Speed Problems

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

1, 2

neeraj.kaushal

08 May 2008, 20:28

211

20

48,243

by: bumpbot

27 Jan 2026, 05:34

ER

There are 10 books lying on a table. Is the proba

655-705 (Hard) | Min-Max Problems, Number Properties

655-705 (Hard) | Min-Max Problems, Number Properties hide tags

1, 2

chetan2u

24 Jan 2017, 06:08

34

20

8,082

by: bumpbot

27 Jan 2026, 13:19

ER

The only gift certificates that a certain store sold yesterday were

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

1, 2

Bunuel

25 Jun 2012, 02:58

193

20

43,130

by: bumpbot

04 Feb 2026, 10:08

ER

If Pat saved $600 of his earnings last month, how much did

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

1, 2

Bunuel

30 Jul 2012, 02:23

33

20

32,355

by: totaltestprepNick

25 Feb 2026, 15:14

ER

At a bakery, all donuts are priced equally and all bagels

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

1, 2

Walkabout

06 Dec 2012, 04:17

95

20

43,349

by: totaltestprepNick

02 Mar 2026, 08:15

ER

If the average (arithmetic mean) of n consecutive odd integers is 10,

655-705 (Hard) | Statistics and Sets Problems

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

1, 2

tonebeeze

09 Dec 2010, 15:43

496

20

74,760

by: totaltestprepNick

04 Mar 2026, 12:01

ER

What is the greatest common divisor of positive integers m and n ?

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

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

1, 2

lahoosaher

06 Jun 2019, 08:23

413

20

91,542

by: totaltestprepNick

11 Mar 2026, 10:09

ER

What is the absolute difference between the cubes of two

655-705 (Hard) | Algebra +2 tags

655-705 (Hard) | Algebra, Arithmetic, Exponents hide tags

1, 2

Smita04

15 Mar 2012, 23:23

88

20

13,797

by: vallequalle

17 Mar 2026, 07:14

ER

A manufacturer conducted a survey to determine how many peop

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

1, 2

144144

10 Dec 2010, 12:32

337

20

73,701

by: bumpbot

19 Mar 2026, 11:22

ER

Is the point (x,y) in the fourth quadrant?

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

1, 2

Jones105

23 Nov 2017, 23:59

8

21

8,023

by: Salsanousi

30 Sep 2018, 14:25

ER

Is x > 0?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

1, 2

afife76

27 Feb 2014, 11:15

26

21

9,185

by: bumpbot

30 Oct 2021, 06:47

ER

ax + by=10, ay + bx=12. which one is greater here, x or y ?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

1, 2

Asifpirlo

05 Aug 2013, 00:56

61

21

12,198

by: bumpbot

08 Apr 2022, 16:46

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If zy < xy < 0, is |x - z | + |x| = |z|?

Poor Quality

Poor Quality hide tags

1, 2

rgtiwari

17 Sep 2010, 12:10

279

21

45,056

by: bumpbot

27 Jul 2022, 11:21

ER

If ab ≠ 0, does a=b?

605-655 (Medium) | Algebra, Exponents

605-655 (Medium) | Algebra, Exponents hide tags

1, 2

gmattokyo

11 Oct 2013, 03:27

34

21

15,015

by: sanyasanha

08 Feb 2023, 21:14

ER

What is the area of parallelogram ABCD ?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

1, 2

tkarthi4u

04 Oct 2009, 08:30

57

21

23,430

by: bumpbot

15 Feb 2023, 04:21

ER

Is b/3 an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

1, 2

valerjo79

26 Nov 2012, 03:16

75

21

15,353

by: bumpbot

10 Jul 2023, 09:58

ER

In the figure shown, the circle has center O and radius 50

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

1, 2

ajit257

03 Jan 2011, 18:18

48

21

26,212

by: bumpbot

14 Jul 2023, 23:08