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

78,537

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

188,419

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

487,764

by: bb

29 Aug 2025, 13:27

ER

If N is a positive Integer, is the units digit of N equal to zero?

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

meaglesp345

20 Mar 2010, 14:57

121

14

44,001

by: bumpbot

09 Nov 2024, 11:15

ER

For all z, [z] denotes the least integer greater than or equal to z.

555-605 (Medium) | Functions and Custom Characters

555-605 (Medium) | Functions and Custom Characters hide tags

Bunuel

18 Feb 2014, 03:38

313

15

43,997

by: totaltestprepNick

24 Feb 2026, 12:55

ER

If K is an integer and 2 < K < 8, what is the value of K ?

555-605 (Medium) | Multiples and Factors

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

blog

31 Jan 2008, 19:32

92

13

43,962

by: bumpbot

26 May 2025, 03:15

ER

Whenever martin has a restaurant bill with an amount between

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

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

GMATD11

12 Feb 2011, 13:48

196

19

43,862

by: bumpbot

13 Apr 2025, 07:57

ER

What is the average (arithmetic mean) of x and y?

Sub 505 (Easy) | Statistics and Sets Problems

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

Bunuel

24 Dec 2013, 03:42

27

5

43,815

by: totaltestprepNick

04 Mar 2026, 10:50

ER

Is xm < ym ? (1) x > y (2) m < 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Carcass

26 Jul 2017, 09:10

220

18

43,756

by: bumpbot

20 Mar 2025, 03:41

ER

A certain list, L, contains a total of n numbers, not necessarily dist

655-705 (Hard) | Statistics and Sets Problems

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

1, 2

Bunuel

26 Apr 2019, 03:31

440

23

43,710

by: bumpbot

07 Nov 2025, 04:15

ER

Is quadrilateral ABCD a rectangle?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

1, 2

gottabwise

23 Jan 2010, 21:18

137

26

43,654

by: bumpbot

22 Oct 2024, 23:21

ER

Of the 66 people in a certain auditorium, at most 6 people

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

16 Jul 2012, 04:49

309

16

43,640

by: findingmyself

09 Nov 2025, 08:19

ER

If ab0 and points (-a, b) and (-b, a) are in the same quadrant of the

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

1, 2

jitendra

05 Dec 2022, 08:26

305

21

43,540

by: bumpbot

19 Dec 2025, 10:16

ER

Is 5^k less than 1,000? (1) 5^(k+1) > 3,000 (2) 5^(k-1) = 5^k - 500

555-605 (Medium) | Exponents, Inequalities

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

Walkabout

26 Dec 2012, 04:41

318

16

43,533

by: totaltestprepNick

28 Feb 2026, 14:29

ER

If m, p, and t are positive integers and m<p<t, is the

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

h2polo

16 Nov 2009, 08:01

230

16

43,501

by: bumpbot

08 Aug 2025, 22:32

ER

If n is an integer, is (0.1)^n greater than (10)^n?

Sub 505 (Easy) | Exponents, Inequalities

Sub 505 (Easy) | Exponents, Inequalities hide tags

Bunuel

14 May 2023, 14:43

186

13

43,444

by: bumpbot

19 Jul 2025, 04:27

ER

If the units digit of integer n is greater than 2, what is

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

Bunuel

12 Jun 2009, 21:25

77

17

43,399

by: bumpbot

08 Oct 2025, 01:44

ER

How many triangles can be formed using 8 points in a given p

555-605 (Medium) | Combinations, Geometry

555-605 (Medium) | Combinations, Geometry hide tags

1, 2

CasperMonday

23 Aug 2009, 05:46

143

27

43,386

by: bumpbot

31 Aug 2025, 21:35

ER -1

If n is positive, is root(n) > 100 ?

555-605 (Medium) | Algebra +2 tags

555-605 (Medium) | Algebra, Inequalities, Roots hide tags

Bunuel

11 Jan 2011, 17:57

346

18

43,375

by: bumpbot

20 Sep 2025, 23:00

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

43,336

by: totaltestprepNick

02 Mar 2026, 08:15

ER

Is x^4 + y^4 > z^4? (1) x^2 + y^2 > z^2 (2) x + y > z

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

ksharma12

04 Dec 2018, 03:49

252

18

43,255

by: wArrior902

05 Sep 2025, 09:34

ER

If x and y are positive integers, what is the greatest common divisor

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

1, 2

zest4mba

23 Aug 2010, 11:27

367

31

43,238

by: bumpbot

03 Jul 2025, 02:47

ER

If x and y are greater than 0, is x = 1 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

PhillyBound

13 Aug 2011, 17:09

146

10

43,229

by: bumpbot

10 Mar 2025, 03:59

ER

In the sequence S of numbers, each term after the first two terms is

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

26 Feb 2014, 02:21

227

15

43,224

by: bumpbot

14 Sep 2025, 11:04

ER

R = 1 + 2xy + x^2y^2, what is the value of xy?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

satishreddy

03 Sep 2015, 07:37

103

14

43,203

by: bumpbot

20 Nov 2024, 11:44

ER

Each of the 45 boxes on shelf J weighs less than each of the

505-555 (Easy) | Statistics and Sets Problems

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

TOUGH GUY

07 Jun 2020, 02:28

84

10

43,165

by: bumpbot

07 Jan 2024, 05:36

ER

Juan bought some paperback books that cost $8 each and some

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

1, 2

neeraj.kaushal

29 Jun 2013, 06:13

147

28

43,164

by: bumpbot

05 Jul 2025, 09:04

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

43,118

by: bumpbot

04 Feb 2026, 10:08

ER

Janson's salary and Karen's salary were each p percent

555-605 (Medium) | Percent and Interest Problems

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

tarek99

11 Dec 2007, 15:22

201

16

43,110

by: bumpbot

08 Dec 2025, 18:46

ER

If x and y are positive, is x < 10 < y?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

01 Oct 2012, 05:17

162

16

43,078

by: totaltestprepNick

01 Mar 2026, 14:15

ER

In each game of a certain tournament, a contestant either loses 3 poin

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

1, 2

Bunuel

16 Jun 2016, 04:25

265

21

42,948

by: GmatKnightTutor

25 May 2025, 05:22

ER

Is x^2 greater than x? (1) x^2 is greater than 1 (2) x is greater than

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

26 Jan 2022, 05:58

138

12

42,938

by: ShreyashGupta188

05 Feb 2025, 06:20

ER

What is the area of rectangular region R?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

1, 2

Bunuel

17 Jan 2014, 02:31

256

25

42,921

by: bumpbot

01 Aug 2025, 01:43

ER

Two positive integers a and b are divisible by 5, which is their

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

1, 2

EgmatQuantExpert

13 Aug 2018, 03:10

265

27

42,916

by: bumpbot

04 Oct 2025, 09:50

ER

If a and b are integers, and b > 0, does (a - 1)/(b + 1) = a/b ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

26 Apr 2019, 02:08

192

18

42,869

by: Bunuel

30 Aug 2025, 13:26

ER

A total of 20 amounts are entered on a spreadsheet that has

555-605 (Medium) | Statistics and Sets Problems

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

wizard

02 Mar 2012, 03:54

313

14

42,809

by: KarishmaB

18 May 2025, 22:14

ER

Each of the marbles in a jar is either red or white or blue. If one ma

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

BrainLab

19 Sep 2015, 12:55

69

10

42,797

by: bumpbot

24 Aug 2025, 22:11

ER

If z^n = 1, what is the value of z?

605-655 (Medium) | Exponents

605-655 (Medium) | Exponents hide tags

tradinggenius

24 Jan 2011, 08:02

171

17

42,629

by: bumpbot

28 Nov 2025, 07:49

ER

Does the decimal equivalent of p/q, where p and q are positive integer

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

vaivish1723

15 Sep 2020, 07:29

125

19

42,578

by: bumpbot

28 Oct 2025, 04:28

ER

For each landscaping job that takes more than 4 hours, a certain

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

1, 2

mrsmarthi

08 Oct 2009, 17:15

249

21

42,470

by: bumpbot

06 Jan 2026, 21:23

ER

If x and y are integers and y = |x + 3| + |4 - x|, does y equals 7?

555-605 (Medium) | Absolute Values, Inequalities

555-605 (Medium) | Absolute Values, Inequalities hide tags

zaarathelab

27 Jul 2015, 14:57

331

19

42,470

by: Ishaan30

22 May 2025, 12:38

ER

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

42,319

by: bumpbot

19 Jul 2025, 16:28

ER

If a and b are both positive integers, is b^(a+1) - ba^b odd?

805+ (Hard) | Algebra, Number Properties

805+ (Hard) | Algebra, Number Properties hide tags

Bunuel

05 May 2011, 00:56

182

15

42,314

by: bumpbot

07 Feb 2025, 04:15

ER

Sets A, B, and C have some elements in common. If 16 elements are in

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

gmatpapa

07 Apr 2011, 12:50

92

15

42,303

by: bumpbot

29 Mar 2025, 03:22

ER

Circle C and line K lie in the XY plane. If circle C is centered at th

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

vigneshpandi

02 Apr 2019, 03:36

168

15

42,296

by: Bunuel

02 Oct 2025, 09:50

ER

Is w greater than 1? (1) w + 2 > 0 (2) w^2 > 1

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

aiming4mba

05 Jun 2019, 05:09

120

17

42,259

by: bumpbot

24 Apr 2025, 09:58

ER

If xy > 0, does (x - 1)(y - 1) = 1?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

10 Feb 2014, 00:30

214

17

42,250

by: Bunuel

20 Oct 2025, 08:24

ER

The integers m and p are such that 2<m<p, and m is not a

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

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

LM

28 Mar 2012, 02:48

370

19

42,250

by: bumpbot

17 May 2025, 06:19

ER

If p, s, and t are positive integer, is |ps - pt| > p(s - t) ?

505-555 (Easy) | Absolute Values

505-555 (Easy) | Absolute Values hide tags

AJ1012

18 Dec 2015, 13:11

372

16

42,223

by: bumpbot

05 Sep 2025, 16:09

ER

How many integers n are there such that r < n < s ?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

29 Sep 2010, 07:05

297

18

42,190

by: totaltestprepNick

04 Mar 2026, 11:35

ER

If y is an integer and y = |x| + x, is y = 0?

655-705 (Hard) | Absolute Values, Inequalities

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

Fijisurf

14 Dec 2010, 22:03

172

8

42,163

by: bumpbot

29 Jul 2025, 23:04

ER

Michael arranged all his books in a bookcase with 10 books on each she

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

10 Feb 2014, 00:27

278

15

42,142

by: bumpbot

22 Apr 2026, 13:00

ER

If m and n are positive integers, is root(m)^n an integer?

505-555 (Easy) | Exponents +2 tags

505-555 (Easy) | Exponents, Number Properties, Roots hide tags

Bunuel

09 Jul 2012, 04:56

91

6

42,102

by: bumpbot

01 Apr 2025, 19:18