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

78,572

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

188,428

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

487,774

by: bb

29 Aug 2025, 13:27

ER

If a and b are positive, is (a^(-1) + b^(-1))^(-1) less than

655-705 (Hard) | Exponents, Inequalities

655-705 (Hard) | Exponents, Inequalities hide tags

barakhaiev

11 Oct 2013, 06:44

4

3

4,179

by: Bunuel

11 Oct 2013, 06:46

ER

If w, x, y, and z are the digits of the four-digit number N, a positiv

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

gmattokyo

07 Aug 2019, 03:12

119

6

29,440

by: bumpbot

20 Jun 2025, 00:24

What was the greatest difference between the high and low

605-655 (Medium) | Statistics and Sets Problems

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

ezinis

09 Nov 2009, 19:01

23

14

7,772

by: bumpbot

15 Aug 2025, 06:06

ER

If a and b are consecutive positive integers, and ab = 30x ,

705-805 (Hard) | Multiples and Factors

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

4test1

09 Nov 2009, 22:04

73

12

22,287

by: AccipiterQ

19 Nov 2013, 09:00

ER

According to the table of shipping rates above

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

ezinis

10 Nov 2009, 06:57

4

4,769

by: bumpbot

23 Jan 2021, 04:24

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Is a>0? (1) a^3-a<0 (2) 1-a^2<0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

KocharRohit

12 Nov 2009, 07:48

31

17

10,259

by: bumpbot

31 Jul 2023, 10:49

ER

A certain one-day seminar consisted of a morning session and

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

adarsh12345

01 Sep 2019, 13:33

293

19

68,567

by: bumpbot

17 Apr 2025, 06:52

ER

A drawer contains 8 socks, and 2 socks are selected at random without

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Economist

12 Nov 2009, 09:35

164

15

46,338

by: bumpbot

14 Oct 2025, 10:57

ER

If xy 0, is x > y? (1) 4x = 3y (2) |y - x| = x - y

805+ (Hard) | Absolute Values, Inequalities

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

Economist

12 Nov 2009, 09:45

157

19

15,433

by: bumpbot

25 Mar 2023, 22:56

ER

In which quadrant of the coordinate plane does the point

805+ (Hard) | Absolute Values +2 tags

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

1, 2

Bunuel

27 Jun 2013, 22:17

161

26

37,245

by: bumpbot

17 Jun 2025, 15:35

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Is xy<0 ? (1) x^3*y^5/x*y^2 <0 (2) |x|-|y|<|x-y

805+ (Hard) | Absolute Values, Inequalities

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

Bunuel

05 Jul 2013, 15:21

99

13

18,987

by: bumpbot

25 Mar 2023, 23:02

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Is x^2+y^2 divisible by 5?

Poor Quality

Poor Quality hide tags

ctrlaltdel

14 Nov 2009, 18:56

35

13

15,941

by: deeuk

10 Nov 2014, 01:27

ER

Nina and Teri are playing a dice game. Each girl rolls a

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

ctrlaltdel

15 Nov 2009, 22:17

35

9

12,464

by: bumpbot

30 Aug 2023, 08:26

ER

Mike recently won a contest in which he will have the opport

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

1, 2

ctrlaltdel

19 Sep 2013, 05:09

173

31

28,565

by: SudsMeister

04 May 2025, 01:41

ER

If x, y, and z are positive integers, where x > y and

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

ctrlaltdel

13 Jun 2013, 05:51

61

12

8,802

by: bumpbot

30 Aug 2025, 03:17

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

43,507

by: bumpbot

08 Aug 2025, 22:32

ER

Inequality and absolute value questions from my collection

705-805 (Hard) | Absolute Values, Inequalities

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

1, 2...11, 12

Bunuel

16 Nov 2009, 11:33

3.2k

236

485,050

by: Bunuel

07 Mar 2025, 02:20

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Is |x - y| > |x| - |y|? (1) y < x (2) xy < 0

655-705 (Hard) | Absolute Values, Inequalities

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

1, 2, 3

study

20 Jul 2021, 00:43

1.5k

48

218,963

by: ManishaPrepMinds

14 Jul 2025, 00:02

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If x^2/9 4/y^2 = 12, what is the value of x?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

kairoshan

30 May 2022, 01:14

102

4

26,729

by: bumpbot

18 Jul 2025, 23:32

ER

If x, y, and z are integers, and x < y < z, is z y = y

805+ (Hard) | Statistics and Sets Problems

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

kairoshan

04 Jul 2013, 23:56

125

12

22,998

by: bumpbot

17 Jul 2025, 02:33

ER

The useful life of a certain piece of equipment is

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

kairoshan

19 Nov 2009, 06:45

7

5

16,933

by: Bunuel

05 May 2013, 04:21

ER

Guests at a recent party ate a total of fifteen hamburgers.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

kairoshan

18 Nov 2009, 21:47

236

14

46,246

by: bumpbot

03 Jan 2026, 11:10

ER

If r + s > 2t, is r > t ? (1) t > s (2) r > s

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

kairoshan

26 Mar 2012, 00:36

201

18

36,574

by: Bunuel

20 Nov 2025, 04:12

ER

If x + 2y = z, what is the value of x?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

kairoshan

17 Mar 2015, 07:28

21

10

21,303

by: bumpbot

22 Oct 2025, 06:40

ER

Is x < z? (1) x = (1/2)y (2) y = 0.5z

605-655 (Medium) | Algebra, Inequalities

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

kairoshan

23 Mar 2023, 05:36

18

3

11,330

by: bumpbot

21 Mar 2023, 06:49

ER

If the square root of the product of three distinct positive

705-805 (Hard) | Number Properties, Statistics and Sets Problems

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

Bunuel

05 Jul 2013, 15:19

73

15

18,951

by: bumpbot

15 Sep 2025, 11:43

ER

Is the perimeter of triangle ABC greater than 20?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

kp1811

19 Nov 2009, 19:25

128

17

40,732

by: bumpbot

23 Aug 2023, 22:33

ER

Jane can paint the wall in J hours, and Bill can paint the

805+ (Hard) | Word Problems, Work and Rate Problems

805+ (Hard) | Word Problems, Work and Rate Problems hide tags

1, 2

Bunuel

20 Nov 2009, 09:37

370

22

39,993

by: bumpbot

27 Mar 2026, 15:49

ER

For all integers n, n* = n(n – 1). What is the value of x* w

705-805 (Hard) | Arithmetic, Functions and Custom Characters

705-805 (Hard) | Arithmetic, Functions and Custom Characters hide tags

srini123

20 Nov 2009, 16:24

33

12

8,701

by: bumpbot

28 Apr 2025, 00:57

ER

If M and N are positive, what is M*N ?

555-605 (Medium) | Algebra, Exponents

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

wolver123

04 Jul 2013, 23:48

20

16

8,384

by: bumpbot

02 Jan 2024, 21:15

ER

Is |x - 5| > 4 ?

555-605 (Medium) | Absolute Values, Inequalities

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

study

24 Nov 2009, 00:56

16

7,505

by: bumpbot

03 Dec 2023, 03:12

ER

Is xy > x^2*y^2? (1) 14*x^2 = 3 (2) y^2 = 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

jade3

16 Feb 2012, 22:37

36

17

28,275

by: bumpbot

22 Sep 2024, 02:54

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

41,267

by: bumpbot

19 Jun 2024, 00:49

ER

Are all the numbers in a certain list of 20 numbers equal?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

GMAT TIGER

11 Jul 2013, 23:10

10

11

6,597

by: bumpbot

31 Jan 2025, 08:01

ER

In the top ten finishers of a cycling race, 4 were Italians and 8

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

23 Oct 2025, 08:07

74

4

20,450

by: bumpbot

06 Apr 2025, 10:03

ER

Is (x – 2)^2 > x^2? (1) x^2 > x (2) 1/x > 0

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

kirankp

30 Nov 2009, 08:03

52

13

12,642

by: bumpbot

03 Jan 2024, 20:52

ER

If in a six-digit integer n, f(k) represents the value of the

805+ (Hard) | Functions and Custom Characters, Multiples and Factors

805+ (Hard) | Functions and Custom Characters, Multiples and Factors hide tags

study

02 Dec 2009, 12:52

89

8

11,578

by: bumpbot

09 Sep 2025, 18:58

ER

A certain 13m ladder is resting against a wall of height X

Poor Quality

Poor Quality hide tags

rathoreaditya81

05 Dec 2009, 11:51

4

16

4,818

by: kundankshrivastava

19 May 2014, 23:42

ER

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

199

20

40,176

by: Bunuel

05 Oct 2025, 01:46

ER

In Jefferson School, 300 students study French or Spanish or

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

1, 2

ISBtarget

15 Feb 2012, 12:36

247

21

53,318

by: totaltestprepNick

03 Mar 2026, 13:06

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

25,738

by: bumpbot

13 Jul 2025, 00:21

ER

On a certain day it took Bill three times as long to drive from home

555-605 (Medium) | Distance and Speed Problems

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

dobinnoli

30 Sep 2022, 14:30

113

4

27,283

by: bumpbot

23 Dec 2025, 20:25

ER

In the figure shown, point O is the center of the semicircle and point

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

1, 2

burnttwinky

05 Oct 2019, 00:06

730

34

162,112

by: bumpbot

01 Dec 2024, 08:47

ER

Is x^2 equal to xy? (1) x^2 y^2 = (x + 5)(y - 5) (2) x = y

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

dobinnoli

13 Sep 2022, 02:40

193

13

36,029

by: bumpbot

13 Oct 2025, 10:52

ER

For a set of 3 numbers, assuming there is only one mode,

705-805 (Hard) | Statistics and Sets Problems

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

xcusemeplz2009

16 Dec 2009, 22:36

28

15

9,391

by: bumpbot

18 Sep 2025, 05:58

ER

If m and r are two numbers on a number line, what is the value of r?

705-805 (Hard) | Absolute Values, Coordinate Plane

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

msunny

18 Dec 2009, 15:27

308

18

34,322

by: bumpbot

09 Jul 2025, 10:11

ER

If x, y, and z are positive integers, and (x!+x)/z=y, then

805+ (Hard) | Algebra +2 tags

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

Marco83

19 Dec 2009, 15:26

94

9

9,904

by: bumpbot

05 Aug 2021, 03:09

ER

If Bob produces 36 or fewer in a week, he is paid X dollars

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

1, 2

msunny

17 May 2012, 05:27

345

22

59,279

by: bumpbot

03 Apr 2025, 12:46

ER

What is the greatest common divisor of two positive integers a and b?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

chetan2u

20 Jan 2015, 12:59

14

5

5,773

by: bumpbot

11 Aug 2025, 17:11

ER

If x, y, p, and q are positive, is x >= y?

Sub 505 (Easy) | Algebra, Inequalities

Sub 505 (Easy) | Algebra, Inequalities hide tags

blover

08 Nov 2018, 04:46

1

6

9,575

by: EMPOWERgmatRichC

27 Nov 2017, 12:42