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

78,681

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

188,501

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

487,906

by: bb

29 Aug 2025, 13:27

ER

If P, Q, R, and S are positive integers, and P/Q = R/S, is R

655-705 (Hard) | Multiples and Factors

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

rxs0005

01 Feb 2011, 11:01

53

14

21,046

by: bumpbot

17 Feb 2025, 05:18

ER

The average (arithmetic mean) of 5 distinct, single digit integers is

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

qweert

24 Jul 2017, 06:30

144

12

34,744

by: bumpbot

20 Feb 2025, 09:16

ER

At a certain clothing store, customers who buy 2 shirts pay the regula

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

GMATinsight

22 Apr 2020, 00:53

340

19

51,604

by: Udniez

22 Feb 2025, 13:02

ER

What is the value of t?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

1, 2

Bunuel

16 Jun 2016, 03:26

33

20

25,887

by: bumpbot

25 Feb 2025, 03:56

ER

If x and y are nonzero integers, is x^y < y^x ?

605-655 (Medium) | Algebra +2 tags

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

Bunuel

27 Oct 2005, 16:28

231

11

34,288

by: bumpbot

25 Feb 2025, 13:36

ER

Is the average (arithmetic mean) of 5 different positive integers at

555-605 (Medium) | Statistics and Sets Problems

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

piyushksharma

07 May 2012, 08:55

153

16

63,380

by: bumpbot

02 Mar 2025, 08:34

ER

Is x + y > 0 ? (1) x^2 - y^2 > 1 (2) x/y + 1 > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

surendar26

26 Dec 2010, 08:31

28

8

7,914

by: bumpbot

03 Mar 2025, 08:33

ER

S is a set of positive integers. The average of the terms in

705-805 (Hard) | Statistics and Sets Problems

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

1, 2

rohitgarg

07 Nov 2013, 11:43

79

20

22,120

by: bumpbot

05 Mar 2025, 22:34

ER

In the figure above, PQRS is a square and AB = AC. Is the area of tria

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

AdmitJA

28 Jan 2015, 22:16

136

17

25,705

by: bumpbot

12 Mar 2025, 23:27

ER

In the infinite sequence S, each term Sn after S2 is equal to the sum

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

MariaVorop

19 Mar 2020, 08:59

17

11

8,127

by: ManifestDreamMBA

18 Mar 2025, 11:14

ER

What is the sum of the digits of the positive integer n

605-655 (Medium) | Arithmetic, Exponents

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

samark

04 Nov 2010, 08:24

67

19

17,444

by: AVMachine

20 Mar 2025, 05:27

ER

Jack picked 76 apples. Of these, he sold 4y apples to Juanita and 3t a

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

26 Apr 2019, 02:34

37

12

22,028

by: bumpbot

20 Mar 2025, 07:26

ER

If p1 and p2 are the populations and r1 and r2 are the numbers of repr

505-555 (Easy) | Fractions and Ratios, Word Problems

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

Bunuel

18 Sep 2012, 03:26

112

17

31,997

by: Bunuel

21 Mar 2025, 08:29

ER

In the standard (x,y) coordinate plane, what is the slope of the line

805+ (Hard) | Absolute Values, Coordinate Plane

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

gmatt1476

21 Sep 2019, 18:19

315

16

29,385

by: hr1212

22 Mar 2025, 12:39

ER

Set S consists of n consecutive integers, where n > 1. What is the

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

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

Bunuel

04 Jun 2015, 04:22

34

10

9,255

by: bumpbot

24 Mar 2025, 23:37

ER

What is the value of the positive integer n ?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

03 Jan 2014, 06:17

39

10

19,888

by: bumpbot

25 Mar 2025, 08:59

ER

If x, y and z are positive integers such that x^4*y^3 = z^2

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

EgmatQuantExpert

22 Feb 2024, 04:56

391

12

39,487

by: bumpbot

26 Mar 2025, 06:29

ER

If a number N is decreased by p percent and then the resulting value

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

santorasantu

01 Oct 2015, 06:32

76

18

18,174

by: bumpbot

26 Mar 2025, 22:24

ER

If vertices of a triangle have coordinates (-2,2), (3,2) and

805+ (Hard) | Absolute Values, Coordinate Plane

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

noboru

10 Aug 2009, 02:25

236

12

47,300

by: bumpbot

28 Mar 2025, 14:05

ER

What is the value of the tenths digit of number x?

555-605 (Medium) | Fractions and Ratios

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

1, 2

nikhilbajaj

24 Dec 2009, 10:33

79

20

27,433

by: bumpbot

30 Mar 2025, 00:19

ER

If Father's age is 1 less than twice the son's age, what is

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

docabuzar

31 Jan 2012, 13:24

107

14

15,392

by: Dereno

30 Mar 2025, 21:54

ER

If a, b and n are positive integers such that n = 3a – b3

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

EgmatQuantExpert

13 Aug 2018, 03:10

364

12

40,303

by: bumpbot

31 Mar 2025, 05:05

ER

If a is non-negative, is x^2 + y^2 > 4a ?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

Marcab

10 May 2013, 09:26

87

14

18,110

by: Bunuel

02 Apr 2025, 00:05

ER

P and Q are prime numbers less than 70. What is the units digit of P*Q

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

1, 2

EgmatQuantExpert

13 Aug 2018, 03:11

188

25

29,398

by: bumpbot

02 Apr 2025, 13:18

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

73,894

by: bumpbot

07 Apr 2025, 09:46

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

43,878

by: bumpbot

13 Apr 2025, 07:57

ER

On the number line, the distance between x and y is greater than the

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

jj97cornell

03 Feb 2012, 14:32

446

19

93,496

by: bumpbot

15 Apr 2025, 03:24

ER

An alloy, Alloy K, is made by mixing certain quantities of iron and

705-805 (Hard) | Mixture Problems

705-805 (Hard) | Mixture Problems hide tags

guddo

30 May 2024, 12:21

110

13

10,561

by: elslyknight

15 Apr 2025, 06:22

ER

If y is a negative number greater than -8, is x greater than

655-705 (Hard) | Absolute Values, Coordinate Plane

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

shekar123

01 Jun 2010, 20:39

66

17

16,216

by: bumpbot

16 Apr 2025, 05:55

ER

In how many ways can a coach select a 4-person university team from a

505-555 (Easy) | Combinations +2 tags

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

1, 2

pate13

24 Aug 2015, 17:49

64

22

15,869

by: bumpbot

18 Apr 2025, 05:16

ER

What is the value of x?

605-655 (Medium) | Algebra, Number Properties

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

Bunuel

27 Jan 2015, 07:35

55

9

7,784

by: bumpbot

22 Apr 2025, 11:31

ER

If each of the two digits X and Y is distinct

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

ConnectTheDots

28 Aug 2012, 06:56

36

9

9,351

by: bumpbot

23 Apr 2025, 07:12

ER

Is r*s a multiple of 25? (r and s are positive integers)

605-655 (Medium) | Multiples and Factors

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

fattty

13 Jan 2016, 23:34

85

10

10,657

by: bumpbot

24 Apr 2025, 05:09

ER

If a certain positive integer is divided by 9, the remainder

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

fozzzy

19 Jan 2013, 05:21

83

16

23,795

by: bumpbot

24 Apr 2025, 21:41

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

8,706

by: bumpbot

28 Apr 2025, 00:57

ER

Is pq = 1? (1) pqp = p (2) qpq = q

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

DFG5150

01 Oct 2013, 03:21

77

16

28,441

by: Bunuel

29 Apr 2025, 10:07

ER

Each of three students is given fifteen tokens to spend at a fair with

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

22 Apr 2025, 00:30

5

7

1,475

by: Bunuel

01 May 2025, 02:45

ER -1

Mrs. Claus is selecting three reindeer from the herd for a special

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Bunuel

10 May 2024, 01:30

26

9

3,736

by: NoeticImbecile

04 May 2025, 09:12

ER

Any decimal that has only a finite number of nonzero digits

555-605 (Medium) | Fractions and Ratios

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

Walkabout

18 Dec 2012, 05:27

257

12

50,089

by: bumpbot

16 May 2025, 10:35

ER

If x is to be selected at random from T, what is the probabi

555-605 (Medium) | Probability, Statistics and Sets Problems

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

1, 2

vksunder

18 Aug 2008, 12:17

146

22

29,209

by: Bunuel

17 May 2025, 10:26

ER

If all the N students of a class are classified into groups of either

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

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

EgmatQuantExpert

09 Apr 2024, 07:00

164

15

20,613

by: bumpbot

17 May 2025, 19:24

ER

How many hours did Suresh travel yesterday?

705-805 (Hard) | Distance and Speed Problems

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

SVaidyaraman

19 Mar 2013, 23:11

43

12

7,062

by: bumpbot

18 May 2025, 09:35

ER

Shaina's five-distinct-digit locker code is 5A48B. What

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Smita04

09 Feb 2012, 23:39

80

17

12,856

by: bumpbot

20 May 2025, 01:17

ER

How many subordinates does Marcia have?

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

marcodonzelli

16 Dec 2007, 03:13

224

15

31,402

by: bumpbot

20 May 2025, 06:45

ER

In a two-story apartment complex, each apartment on the upper floor

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

23 May 2020, 08:23

103

12

18,206

by: bumpbot

22 May 2025, 06:44

ER

Is x < y ? (1) x^2 - y^2 < 0 (2) -x - y < 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

LamaSalah

27 Feb 2017, 07:17

75

19

19,836

by: bumpbot

22 May 2025, 07:26

ER

At the bakery, Lew spent a total of $6.00 for one kind of

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

pmal04

27 Jul 2015, 14:51

92

12

23,764

by: bumpbot

24 May 2025, 21:27

ER

If p is a positive integer, is p a prime number?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

06 Jun 2014, 06:29

84

14

21,792

by: bumpbot

25 May 2025, 01:59

ER

If x is an integer greater than 1, what is the value of x?

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

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

GMATD11

10 Mar 2011, 06:50

100

18

20,920

by: bumpbot

27 May 2025, 07:51

ER

What is the remainder when the two-digit, positive integer x is divide

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

nechets

14 Dec 2013, 06:14

232

18

51,758

by: bumpbot

27 May 2025, 11:41