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

78,533

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

487,760

by: bb

29 Aug 2025, 13:27

ER

If u(u+v) <> 0 and u > 0 is 1/(u + v) < 1/u + v ?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

1, 2

PrashantPonde

26 Dec 2012, 00:36

327

23

37,174

by: bumpbot

05 Jun 2025, 23:18

ER

If a, b, c, and d, are positive numbers, is a/b < c/d?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

1, 2

catty2004

12 May 2017, 01:29

473

23

118,464

by: bumpbot

03 Jul 2025, 05:04

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

73,727

by: Aboyhasnoname

24 Jul 2025, 04:01

ER

S is a set of points in the plane. How many distinct triangles can be

Sub 505 (Easy) | Combinations, Coordinate Plane

Sub 505 (Easy) | Combinations, Coordinate Plane hide tags

1, 2

GGUY

15 Mar 2008, 00:41

383

22

66,600

by: Bunuel

31 Jul 2025, 23:54

ER

Is quadrilateral ABCD a rhombus?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

1, 2

Economist

14 Oct 2009, 21:09

156

30

38,452

by: bumpbot

27 Aug 2025, 20:01

ER

At least 100 students at a certain high school study japanes

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

1, 2

amitgovin

20 Jul 2020, 00:09

864

24

137,632

by: bumpbot

28 Aug 2025, 07:46

ER

If x and y are integers and -x < y < x, does (x^2 - y^2)^(1/2) = x + y

805+ (Hard) | Absolute Values +3 tags

805+ (Hard) | Absolute Values, Algebra, Coordinate Plane, Number Properties hide tags

1, 2

Bunuel

14 Jun 2017, 04:26

114

25

16,270

by: bumpbot

29 Aug 2025, 05:02

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 r and s are positive integers, can the fraction r/s be expressed as

555-605 (Medium) | Multiples and Factors, Number Properties

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

1, 2

asveaass

20 Oct 2012, 08:21

766

24

82,664

by: bumpbot

07 Sep 2025, 05:32

ER

In any sequence of n nonzero numbers, a pair of consecutive terms with

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

1, 2

Bunuel

26 Apr 2019, 02:32

244

22

38,831

by: Bunuel

09 Sep 2025, 03:10

ER

A merchant discounted the sale price of a coat and the sale price of a

605-655 (Medium) | Percent and Interest Problems, Word Problems

605-655 (Medium) | Percent and Interest Problems, Word Problems hide tags

1, 2

Bunuel

26 Oct 2015, 09:41

415

31

65,383

by: anushree01

05 Oct 2025, 01:32

ER

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

121,597

by: bumpbot

28 Oct 2025, 22:54

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

43,709

by: bumpbot

07 Nov 2025, 04:15

ER

The velocity, V feet per second, of a model rocket t seconds after

655-705 (Hard) | Distance and Speed Problems

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

Bunuel

04 Aug 2023, 10:00

186

19

39,807

by: Bunuel

24 Nov 2025, 22:48

ER

If q, s, and t are all different numbers, is q < s < t ?

655-705 (Hard) | Absolute Values, Inequalities

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

1, 2

AbdurRakib

19 Jun 2017, 04:59

1.4k

22

82,758

by: bumpbot

30 Nov 2025, 10:41

ER

Is x^5 > x^4? (1) x^3 > x (2) 1/x < x

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

1, 2

aadikamagic

03 Oct 2022, 05:10

153

25

20,404

by: Bunuel

18 Jan 2026, 01:45

ER

If n is a positive integer, is the value of b - a at least twice the

555-605 (Medium) | Algebra, Exponents

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

1, 2

Walkabout

18 Dec 2012, 09:00

320

24

44,545

by: totaltestprepNick

24 Feb 2026, 09:43

ER

How much time did it take a certain car to travel 400

555-605 (Medium) | Distance and Speed Problems

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

1, 2

DSGB

06 Sep 2010, 12:09

206

24

49,306

by: totaltestprepNick

02 Mar 2026, 08:24

ER

If S is a set of odd integers and 3 and –1 are in S, is –15 in S ?

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

Bunuel

26 Apr 2019, 01:57

116

18

24,154

by: bumpbot

20 Apr 2026, 10:50

ER

Is |x| + |x -1| = 1? (1) x ≥ 0 (2) x ≤ 1

555-605 (Medium) | Absolute Values, Inequalities

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

1, 2

mendelay

23 Oct 2009, 09:55

159

25

30,691

by: Bunuel

24 Oct 2023, 00:15

ER

If vertices of a triangle have coordinates (-1,0), (4,0), and (0,A)

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

1, 2

gmat620

15 May 2023, 23:51

160

32

41,266

by: bumpbot

19 Jun 2024, 00:49

ER

What is the perimeter of PQRS ? (1) x = 30 degree (2) w= 45 degree

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

1, 2

Asifpirlo

05 Aug 2013, 03:15

319

29

48,246

by: bumpbot

21 Jan 2025, 07:38

ER

Is (x + 1)/(y + 1) > x/y? (1) 0 < x < y (2) xy > 0

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

1, 2

Bunuel

24 Jun 2018, 11:13

145

27

40,381

by: bumpbot

20 Mar 2025, 19:11

ER

If the graph of y = x^2 + ax + b passes through the points

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

1, 2, 3

aeros232

30 Sep 2012, 14:45

348

45

54,345

by: bumpbot

02 Apr 2025, 11:33

ER

In the xy-plane, region R consists of all the points (x, y)

805+ (Hard) | Coordinate Plane, Inequalities

805+ (Hard) | Coordinate Plane, Inequalities hide tags

1, 2

metallicafan

03 Aug 2021, 02:46

929

24

95,797

by: bumpbot

03 Apr 2025, 12:57

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

74,564

by: GothamKnight27

04 Apr 2025, 22:46

ER

A box contains 10 light bulbs, fewer than half of which are defective.

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

1, 2

marcodonzelli

20 Nov 2023, 08:14

447

27

67,901

by: bumpbot

30 May 2025, 06:27

ER

The annual rent collected by a corporation from a certain building was

705-805 (Hard) | Percent and Interest Problems

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

thanks

09 Sep 2019, 00:32

824

19

86,213

by: bumpbot

02 Jun 2025, 01:35

ER

What is the median number of employees assigned per project

555-605 (Medium) | Statistics and Sets Problems

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

1, 2

ITIZCODE

04 May 2012, 02:26

876

28

97,989

by: RAZANMURADI

09 Jun 2025, 07:30

ER

Of the four numbers represented on the number line above, is

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

1, 2

devinawilliam83

14 Jul 2016, 23:24

400

21

61,963

by: bumpbot

18 Jun 2025, 06:22

ER

Is the standard deviation of the numbers X, Y and Z equal to

505-555 (Easy) | Statistics and Sets Problems

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

1, 2

fozzzy

17 Jan 2013, 06:15

137

22

29,833

by: bumpbot

25 Jun 2025, 04:58

ER

If x is a number in the list above, what is the median of the list?

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

26 Apr 2019, 03:35

375

19

51,906

by: bumpbot

26 Jun 2025, 09:44

ER

If x ≠ 0, is x^2/|x| < 1? (1) x < 1 (2) x > −1

555-605 (Medium) | Absolute Values, Inequalities

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

1, 2

zaarathelab

14 Dec 2009, 01:03

153

26

25,736

by: bumpbot

13 Jul 2025, 00:21

ER

For a certain city's library, the average cost of purchasing each new

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

1, 2

AbdurRakib

22 Jun 2017, 15:43

270

21

44,442

by: ManishaPrepMinds

23 Jul 2025, 01:48

ER

If x^2 = 2^x, what is the value of x ?

655-705 (Hard) | Exponents

655-705 (Hard) | Exponents hide tags

1, 2

Carcass

27 Jul 2017, 08:12

263

28

62,850

by: bumpbot

02 Sep 2025, 07:03

ER

If n is a positive integer and r is the remainder when (n - 1)(n + 1)

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

1, 2

enigma123

21 Jan 2012, 17:57

829

29

142,992

by: Pratham_Patil24

26 Sep 2025, 02:12

ER

A list contains n distinct integers. Are all n integers cons

805+ (Hard) | Statistics and Sets Problems

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

1, 2

UdaySJha

11 Jan 2014, 04:46

156

32

30,101

by: bumpbot

25 Oct 2025, 22:01

ER

The next number in a certain sequence is defined by multiply

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

akijuneja

12 Sep 2013, 06:13

174

19

27,494

by: Bunuel

29 Oct 2025, 11:09

ER

In the rectangular coordinate system above, if OP < PQ, is the area of

655-705 (Hard) | Coordinate Plane, Geometry

655-705 (Hard) | Coordinate Plane, Geometry hide tags

1, 2

eybrj2

20 Aug 2019, 01:52

331

37

47,659

by: Bunuel

10 Nov 2025, 02:44

ER

If x ≠ 0, is |x| < 1 ? (1) x^2 < 1 (2) |x| < 1/x

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

1, 2

boomtangboy

09 Jun 2019, 22:05

469

30

53,769

by: bumpbot

13 Nov 2025, 20:54

ER

If a and b are positive integers, is a/b < 9/11 ?

555-605 (Medium) | Fractions and Ratios, Inequalities

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

1, 2

Bunuel

21 Oct 2015, 21:46

450

28

66,525

by: bumpbot

06 Dec 2025, 07:49

ER

A certain list consists of 3 different numbers. Does the median of the

655-705 (Hard) | Statistics and Sets Problems

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

1, 2

karovd

02 Jul 2021, 02:12

980

25

101,309

by: bumpbot

01 Jan 2026, 07:07

ER

Martha bought several pencils. If each pencil was either a

555-605 (Medium) | Algebra, Word Problems

555-605 (Medium) | Algebra, Word Problems hide tags

1, 2

Bull78

01 Sep 2010, 10:02

390

26

63,868

by: totaltestprepNick

03 Mar 2026, 13:50

ER

In the correctly worked addition problem above, A, B, C, D

805+ (Hard) | Arithmetic, Number Properties

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

1, 2

Carcass

12 Mar 2012, 07:56

417

25

61,024

by: Adit_

05 Mar 2026, 03:29

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

71,974

by: shwetakoshija

26 Mar 2026, 04:48

ER

Of the students who eat in a certain cafeteria, each student either

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

1, 2

dimitri92

04 Jun 2010, 00:29

631

26

127,746

by: AnkitNandwani1

11 Apr 2026, 01:57

ER

In the figure above, what is the area of region PQRST ? (1) PQ = RS (

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

1, 2

Bunuel

09 Jul 2021, 00:33

168

26

36,386

by: Bunuel

16 Jul 2023, 03:49

ER

A rectangular solid has length, width, and height of L cm, W cm, and H

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

1, 2

Bunuel

26 Apr 2019, 03:29

273

28

44,851

by: bumpbot

07 Sep 2023, 20:12

ER

If AD is 6 and ADC is a right angle, what is the area of triangular re

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

1, 2

amitjash

29 Apr 2018, 23:16

92

31

35,611

by: KarishmaB

29 Sep 2023, 02:03

ER

If x and y are the lengths of the legs of a right triangle, what is th

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

1, 2

Bunuel

26 Apr 2019, 03:13

69

21

23,805

by: EMPOWERgmatRichC

15 Nov 2023, 14:24