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

78,623

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

188,460

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

487,842

by: bb

29 Aug 2025, 13:27

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

71,083

by: totaltestprepNick

01 Mar 2026, 14:10

ER

New Set: Number Properties!!!

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

1, 2, 3, 4

Bunuel

26 Dec 2025, 07:15

1.3k

79

185,911

by: Bunuel

26 Dec 2025, 07:14

ER

If x is a member of the set {a, b, c, d}, where a, b, c, and d are the

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

tulsa

05 Feb 2019, 11:36

82

10

17,559

by: bumpbot

12 Dec 2025, 08:15

ER

In the figure above, what is the value of x?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

emmak

26 Mar 2013, 01:22

33

7

8,830

by: bumpbot

28 Jun 2023, 22:24

ER

If a, b, and c are integers and abc ≠ 0, is a^2 – b^2

605-655 (Medium) | Multiples and Factors

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

mun23

26 Mar 2013, 01:52

46

8

14,771

by: Bunuel

15 Nov 2023, 07:31

ER

Of the N candies in a bag, some are peppermint and the rest are

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

mun23

26 Mar 2013, 07:14

88

16

21,838

by: bumpbot

24 May 2025, 01:50

ER

A pair of skis originally cost $160. After discount of x

555-605 (Medium) | Percent and Interest Problems

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

summer101

27 Mar 2013, 07:14

7

4

6,949

by: bumpbot

14 Nov 2022, 04:43

ER

The table above shows the fees that must be paid to a car re

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

skiingforthewknds

28 Mar 2013, 04:09

14

3

5,525

by: bumpbot

23 Oct 2025, 15:49

ER

In a certain sequence, each term, starting with the 3rd term

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

mun23

27 Mar 2013, 22:53

116

16

29,803

by: bumpbot

16 Sep 2025, 07:36

ER

We are given two integers a and b, such that, 2 < a < b and b is not a

805+ (Hard) | Multiples and Factors, Remainders

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

guerrero25

01 Apr 2013, 01:05

11

5

4,914

by: bumpbot

08 Jan 2026, 23:01

ER

The median length of the 13 logs in shipment x was 84 inches, and the

505-555 (Easy) | Statistics and Sets Problems

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

thinktank

01 Apr 2013, 07:43

64

5

15,899

by: bumpbot

14 Dec 2025, 01:23

ER

What is the value of x + y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

gmatfeelizzle

02 Apr 2013, 10:08

10

6

3,829

by: bumpbot

28 Jul 2021, 04:42

ER

What is the value of a ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

atalpanditgmat

03 Apr 2013, 09:42

4

7

4,990

by: MHIKER

05 Jan 2021, 16:10

ER

In parallelogram ABCD , what is the measure of ADC?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

lovejyot

13 Sep 2022, 02:51

8

4

18,162

by: bumpbot

12 Sep 2022, 23:54

ER

A sequence of terms a1, a2 ,a3, ..., a(m-1), am, is given by

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

guerrero25

15 Dec 2020, 23:48

39

10

9,405

by: bumpbot

10 Sep 2015, 01:22

ER

What is value of x - y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

BukrsGmat

06 Apr 2013, 11:04

3

8

4,870

by: Bunuel

30 Oct 2017, 11:52

ER

If xy = -18, is x less than y? (1) x < 0 (2) y < 10

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

jsphcal

07 Apr 2013, 01:43

14

7

16,991

by: bumpbot

25 Jun 2023, 01:31

ER

If the square root of t is a real number, is the square root

Poor Quality

Poor Quality hide tags

Rock750

09 Apr 2013, 16:32

3

3,518

by: Maxirosario2012

29 Nov 2014, 17:16

ER

New DS set!!!

555-605 (Medium) | Algebra +7 tags

555-605 (Medium), 655-705 (Hard) | Algebra, Fractions and Ratios, Geometry, Inequalities, Probability, Remainders, Work and Rate Problems hide tags

1, 2, 3

Bunuel

10 Apr 2013, 08:10

814

57

138,512

by: bumpbot

20 Jun 2025, 04:59

ER

Is x > 0? (1) x^6 > x^7 (2) x^7 > x^8

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

aDAMS

04 Apr 2023, 10:20

73

14

14,813

by: bumpbot

24 Sep 2025, 09:17

The numbers a, b, c, and d are all positive, and J = a/b and K = c/d.

805+ (Hard) | Fractions and Ratios

805+ (Hard) | Fractions and Ratios hide tags

atalpanditgmat

07 Apr 2021, 10:42

30

5

6,452

by: bumpbot

17 Apr 2025, 10:37

Is j-k > 1/j - 1/k ?

Poor Quality

Poor Quality hide tags

guerrero25

13 Apr 2013, 12:00

4

5

3,782

by: mau5

15 Apr 2013, 11:09

ER

55 people live in an apartment complex with three fitness

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Tagger

15 Apr 2013, 06:36

109

15

25,801

by: bumpbot

25 Nov 2025, 22:16

ER

If a, b, and c are integers such that 0 < a < b < c < 10, is

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

emmak

15 Apr 2013, 02:59

128

15

13,875

by: bumpbot

08 Oct 2024, 06:35

ER

In the xy coordinate plane, does the point (3,4) lie on line

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

obs23

15 Apr 2013, 05:07

25

4

6,593

by: bumpbot

09 Dec 2023, 20:31

What is the value of |y − 1| ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

doe007

15 Apr 2013, 14:31

8

12

5,042

by: bumpbot

12 Mar 2019, 11:43

ER

Is y^3 ≤ |y|? (1) y < 1 (2) y < 0

555-605 (Medium) | Absolute Values, Inequalities

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

skamal7

16 Apr 2013, 23:16

39

13

10,265

by: bumpbot

18 Nov 2023, 19:05

ER

What is the minimum number of RECTANGULAR shipping boxes

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

swarman

17 Apr 2013, 01:18

9

8

4,777

by: bumpbot

15 Oct 2023, 12:23

Is x^3-6x^2+11x-60?

Poor Quality

Poor Quality hide tags

Sergiy

18 Apr 2013, 04:19

4

3,360

by: Sergiy

22 Apr 2013, 23:35

Is |p|^2<|p| ? (1) p^2 <= 1 (2) p^2 - 1 not 0

705-805 (Hard) | Absolute Values, Inequalities

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

Zarrolou

17 Jul 2024, 00:06

37

13

7,094

by: bumpbot

16 Jul 2024, 18:29

ER

If p and q are positive integers, is every factor of p a fac

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

neha24

21 Apr 2013, 06:07

9

3

5,700

by: Bunuel

21 Oct 2021, 01:52

ER

A director is deciding how to cast a play from a pool of 50

705-805 (Hard) | Combinations

705-805 (Hard) | Combinations hide tags

blueseas

22 Apr 2013, 14:00

32

8

8,323

by: bumpbot

06 Jan 2026, 01:02

ER

In a network of car dealerships, a group of d sales director

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

skamal7

18 Sep 2013, 00:23

37

12

16,609

by: bumpbot

17 May 2025, 06:19

ER

In the xy-coordinate plane, the slope of line l is 3/4. Does line l pa

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

1, 2

kabilank87

04 Jul 2018, 21:02

189

21

53,746

by: bumpbot

15 Jan 2025, 12:33

ER

Is x < y ? (1) 2x < 3y (2) xy > 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

kabilank87

28 May 2019, 20:44

91

15

33,908

by: bumpbot

25 Aug 2024, 04:13

ER

If B is a set of real numbers, is there a number in B that

655-705 (Hard) | Statistics and Sets Problems

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

battleprof

23 Apr 2013, 09:46

10

17

8,670

by: bumpbot

23 Dec 2024, 06:29

An IT Department employs 8 people at an average salary of $8

Poor Quality

Poor Quality hide tags

SpencerH

24 Apr 2013, 21:05

4

3

3,213

by: doe007

24 Apr 2013, 22:33

ER

What is the value of x?

605-655 (Medium) | Statistics and Sets Problems

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

rajatr

25 Apr 2013, 01:56

2

10

4,336

by: bumpbot

12 Sep 2023, 14:33

ER

x is a positive integer; what is the value of x? 1) The sum

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

rajatr

25 Apr 2013, 01:50

2

3

5,707

by: bumpbot

26 Jun 2015, 02:03

ER

If z = x^n – 19, is z divisible by 9?

555-605 (Medium) | Exponents +2 tags

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

rajatr

25 Apr 2013, 01:55

30

7

12,769

by: bumpbot

29 Mar 2023, 23:59

ER

In a set of 5 numbers, if the largest number is 3 more than

655-705 (Hard) | Statistics and Sets Problems

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

rajatr

25 Apr 2013, 03:19

20

7

5,714

by: bumpbot

14 Sep 2025, 01:12

ER

In triangle JKL shown above, B divides side KL in such a way

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

smyarga

25 Apr 2013, 03:32

21

4

3,726

by: bumpbot

15 Feb 2019, 03:36

What is the value of abcd+a+b+c+d ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

alex90

25 Apr 2013, 05:31

73

6

13,668

by: bumpbot

17 Aug 2024, 03:27

ER

If n > 0, which is greater, 20 percent of n or 10 percent of

555-605 (Medium) | Percent and Interest Problems

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

yezz

27 Apr 2013, 04:16

14

6

8,629

by: bumpbot

19 Aug 2023, 02:48

ER

Is m^3 > m^2?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

fireinbelly

28 Apr 2013, 03:05

12

14

5,281

by: GMATCoachBen

20 Oct 2022, 13:46

ER

If x is positive, what is the value of |x – 3| – 2|x – 4| +

805+ (Hard) | Absolute Values, Inequalities

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

emmak

29 Apr 2013, 00:13

96

14

15,183

by: bumpbot

19 Aug 2023, 06:17

ER

If Q is a set of consecutive integers, what is the standard

605-655 (Medium) | Statistics and Sets Problems

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

CharuKapoor

24 Nov 2019, 02:36

144

12

16,399

by: bumpbot

29 Sep 2025, 08:17

ER

What is the ratio of a to b to c ?

Sub 505 (Easy) | Algebra, Fractions and Ratios

Sub 505 (Easy) | Algebra, Fractions and Ratios hide tags

Rock750

28 Apr 2013, 12:05

10

18

10,380

by: bumpbot

25 Dec 2020, 01:15

ER

Is xy < 0 ? (1) 4|x| + 2|y| = 0 (2) 7|x| + 5|y| = 0

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Rock750

28 Apr 2013, 15:10

3

5

3,266

by: bumpbot

24 Mar 2016, 05:33

ER

If a > 0, is 2/(a+b) + 2/(a-b) = 1?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

ahatoval

29 Apr 2013, 00:14

16

17

10,329

by: bumpbot

29 Sep 2021, 08:01