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

175

15

78,524

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

188,411

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

487,750

by: bb

29 Aug 2025, 13:27

ER

If x is an integer, is the median of 5 numbers shown greater than the

655-705 (Hard) | Statistics and Sets Problems

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

getzgetzu

28 Apr 2006, 00:06

406

16

82,475

by: bumpbot

10 Dec 2025, 01:49

ER

If the integers a and n are greater than 1 and the product of the firs

655-705 (Hard) | Exponents

655-705 (Hard) | Exponents hide tags

dominion

19 Jan 2008, 15:04

386

17

81,976

by: bumpbot

20 Jun 2025, 06:06

ER

If x is an integer, what is the value of x?

805+ (Hard) | Absolute Values

805+ (Hard) | Absolute Values hide tags

1, 2

rohitgoel15

04 Dec 2012, 02:53

220

32

81,602

by: bumpbot

12 Sep 2025, 22:04

ER

If x^2 + y^2 = 29, what is the value of (x - y)^2 ? (1) xy = 10 (2) x

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Jayanth2689

19 Sep 2010, 06:48

152

9

81,202

by: totaltestprepNick

01 Mar 2026, 14:11

ER

When positive integer n is divided by 3, the remainder is 2; and when

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

1, 2

priyankurml

08 Sep 2023, 08:00

337

20

81,186

by: rak08

28 May 2025, 03:54

ER

Is the number of members of Club X greater than the number of members

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

TomB

05 Mar 2012, 18:06

557

15

80,719

by: bumpbot

07 Apr 2025, 11:04

ER

The integers r, s and t all have the same remainder when div

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

imhimanshu

23 Sep 2013, 05:58

625

17

79,586

by: bumpbot

28 Jan 2025, 14:19

ER

The number of seats in the first row of an auditorium is 18

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

Bunuel

13 Aug 2012, 07:13

41

10

79,571

by: totaltestprepNick

01 Mar 2026, 19:05

ER

Of the 75 houses in a certain community, 48 have a patio. How many of

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

bmwhype2

17 Jul 2019, 23:31

426

17

79,554

by: bumpbot

12 Jan 2026, 08:04

ER

If x is positive, is x > 3 ? (1) (x - 1)^2 > 4 (2) (x - 2)^2 > 9

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

1, 2

rohitgoel15

05 Jun 2019, 05:52

335

22

79,445

by: totaltestprepNick

01 Mar 2026, 14:18

ER

In the sequence shown, a_n=a_(n-1)+k, where 2<=n<=15 and k

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

mushyyy

23 Apr 2024, 00:50

691

19

79,302

by: BinodBhai

07 Jun 2025, 23:28

ER

If the terms of a sequence are t1, t2, t3, ..., tn, what is the value

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

bigsteel79

20 May 2018, 13:25

164

16

79,072

by: bumpbot

03 Feb 2026, 07:45

ER

If n is a positive integer, what is the tens digit of n ?

555-605 (Medium) | Fractions and Ratios

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

Walkabout

01 Jun 2021, 03:31

489

15

78,492

by: totaltestprepNick

24 Feb 2026, 13:12

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

78,413

by: bumpbot

14 Dec 2025, 04:13

ER

If the average (arithmetic mean) of four different numbers is 30, how

605-655 (Medium) | Statistics and Sets Problems

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

kook44

06 Jun 2019, 02:45

209

14

78,227

by: bumpbot

19 Aug 2025, 22:29

ER

Each employee of Company Z is an employee of either division X or divi

805+ (Hard) | Fractions and Ratios, Word Problems

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

GMATBLACKBELT

18 Jul 2019, 00:54

659

18

77,890

by: SandeshRathi

18 Jul 2025, 02:54

ER

Is x > 0? (1) |x + 3| = 4x – 3 (2) |x – 3| = |2x – 3|

705-805 (Hard) | Absolute Values, Inequalities

705-805 (Hard) | Absolute Values, Inequalities hide tags

1, 2, 3

dvinoth86

22 Feb 2012, 19:59

455

53

76,713

by: Bunuel

26 Dec 2024, 02:41

ER

What was the percent increase in the population of City K from 1980 to

505-555 (Easy) | Percent and Interest Problems, Word Problems

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

jimmyjamesdonkey

24 Mar 2008, 13:41

178

9

76,681

by: bumpbot

26 Jan 2026, 06:38

ER

If mv < pv < 0, is v > 0?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Stiv

20 Jun 2012, 02:53

612

18

76,664

by: bumpbot

01 Sep 2025, 03:37

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

377

21

76,278

by: bumpbot

18 Sep 2025, 04:28

ER

Lines n and p lie in the xy-plane. Is the slope of line n less than th

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

1, 2

BANON

23 Feb 2012, 08:07

489

37

75,921

by: bumpbot

19 Aug 2025, 20:58

ER

During a 40-mile trip, Marla traveled at an average speed of

605-655 (Medium) | Distance and Speed Problems

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

LM

27 Apr 2010, 09:55

429

18

75,851

by: bumpbot

20 Mar 2026, 01:30

ER

If r and s are positive integers, is r/s an integer?

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

1, 2

BANON

23 Feb 2012, 08:13

367

22

75,623

by: bumpbot

04 Sep 2025, 21:45

ER

From Leland's gross pay of p dollars last week, t percent

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

ricokevin

22 Feb 2007, 20:50

252

19

75,622

by: egmat

19 Feb 2026, 04:25

ER

If x and y are positive, is x < y?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

1, 2

Lettherebelight

18 Jun 2021, 15:54

405

26

75,361

by: bumpbot

17 Jun 2025, 15:08

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

75,338

by: bumpbot

12 Jun 2025, 01:14

ER

What is the value of x if x^3 < x^2?

605-655 (Medium) | Algebra, Inequalities

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

1, 2

AbdurRakib

02 Jul 2021, 02:45

465

30

75,098

by: chetan2u

06 Oct 2025, 07:50

ER

Machines X and V produced identical bottles at different

605-655 (Medium) | Work and Rate Problems

605-655 (Medium) | Work and Rate Problems hide tags

cgl7780

03 Nov 2010, 17:36

1.0k

16

75,082

by: totaltestprepNick

03 Mar 2026, 09:39

ER

The sequence s1, s2, s3, ..., sn, ... is such that Sn = 1/n - 1/(n+1)

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

17 Aug 2010, 12:46

541

14

74,844

by: totaltestprepNick

01 Mar 2026, 19:21

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

74,745

by: totaltestprepNick

04 Mar 2026, 12:01

ER

A certain circle in the xy-plane has its center at the origin. If P is

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Sallyzodiac

03 May 2016, 07:59

241

18

74,716

by: Bunuel

25 Jan 2024, 08:42

ER

Is the positive two-digit integer N less than 40 ?

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

1, 2

Walkabout

03 Dec 2012, 05:42

645

24

74,560

by: GothamKnight27

04 Apr 2025, 22:46

ER

If k = (n + 2)(n - 2), where n is an integer value greater

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

msbandi4321

06 Jun 2021, 14:20

329

15

73,876

by: bumpbot

07 Apr 2025, 09:46

ER

Machine M, working alone at its constant rate, produces x widgets ever

605-655 (Medium) | Work and Rate Problems

605-655 (Medium) | Work and Rate Problems hide tags

violetsplash

24 Sep 2013, 08:29

425

19

73,726

by: Aboyhasnoname

24 Jul 2025, 04:01

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

73,688

by: bumpbot

19 Mar 2026, 11:22

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

73,558

by: bumpbot

21 Apr 2025, 21:30

ER

A total of $60,000 was invested for one year. Part of this amount earn

655-705 (Hard) | Percent and Interest Problems

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

1, 2

RadhaKrishnan

03 Jun 2024, 04:40

449

25

73,408

by: bumpbot

24 Oct 2025, 10:58

ER

What is the tens digit of the positive integer r?

555-605 (Medium) | Fractions and Ratios

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

udaymathapati

08 Apr 2012, 03:18

401

19

73,394

by: bumpbot

08 Feb 2025, 13:30

ER

w, x, y, and z are integers. If w > x > y > z > 0, is y a common divis

805+ (Hard) | Algebra +3 tags

805+ (Hard) | Algebra, Exponents, Multiples and Factors, Number Properties hide tags

ashiima

17 Feb 2022, 01:56

670

17

73,300

by: bumpbot

17 Aug 2025, 01:37

ER

For any positive integer x, the 2-height of x is defined to be the

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

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

Bunuel

26 Oct 2015, 09:58

646

19

72,957

by: bumpbot

23 Mar 2025, 00:06

ER

In planning for a trip, Joan estimated both the distance of the trip,

605-655 (Medium) | Distance and Speed Problems

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

Bunuel

01 Sep 2015, 22:17

643

18

72,776

by: bumpbot

21 Feb 2026, 10:04

ER

Pat bought 5 pounds of apples. How many pounds of pears could he have

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

r019h

11 Jun 2019, 04:11

217

16

72,244

by: egmat

19 Feb 2026, 05:20

ER

During an experiment, some water was removed from each of

555-605 (Medium) | Statistics and Sets Problems

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

vaivish1723

13 May 2010, 04:07

429

19

72,234

by: bumpbot

07 Sep 2025, 05:13

ER

An integer greater than 1 that is not prime is called composite.

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

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

XxxyyY

25 Jun 2006, 16:05

384

19

72,210

by: Bunuel

06 Jul 2025, 12:57

ER

In a certain business, production index p is directly proportional to

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

1, 2

Superhuman

01 Jul 2017, 10:41

565

23

71,972

by: shwetakoshija

26 Mar 2026, 04:48

ER

In the xy-plane shown, the shaded region consists of all points that

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

1, 2

dgboy765

13 Apr 2023, 00:21

789

35

71,906

by: bumpbot

23 May 2025, 01:43

ER

Jill has applied for a job with each of two different companies. What

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

1, 2

AbdurRakib

03 Aug 2021, 02:51

602

31

71,418

by: bumpbot

17 May 2025, 13:38

ER

On a trolley ride around an amusement park, a child traveler

555-605 (Medium) | Distance and Speed Problems

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

bulletpoint

14 Oct 2013, 08:47

488

9

71,284

by: bumpbot

30 May 2025, 03:08

ER

If 0 < x < y, what is the value of (x + y)^2/(x- y)^2?

555-605 (Medium) | Algebra, Exponents

555-605 (Medium) | Algebra, Exponents hide tags

Val1986

12 Aug 2022, 06:23

185

8

71,073

by: totaltestprepNick

01 Mar 2026, 14:10

ER

Malik's recipe for 4 servings of a certain dish requires 3/2

555-605 (Medium) | Fractions and Ratios

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

redbeanaddict

29 Apr 2014, 07:52

356

16

71,018

by: bumpbot

20 Sep 2024, 22:44