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

78,663

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

188,481

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

487,878

by: bb

29 Aug 2025, 13:27

If k is an integer, what is the value of 1/4k? (1) 1/2k =10 (2) 1/3

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

SalahT

03 Aug 2021, 07:40

1

1,455

by: rajatchopra1994

03 Aug 2021, 07:48

What is the value of x? (1) 3√x=−2 (2) x2=64

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

SalahT

03 Aug 2021, 07:46

1

1,251

by: bansalgaurav

03 Aug 2021, 07:51

In the accompanying figure, ABCD is a parallelogram. What is the valu

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

SalahT

03 Aug 2021, 20:05

1

1,287

by: rajatchopra1994

03 Aug 2021, 20:12

Is n an odd integer? (1) 2n is an even integer. (2) 2n 1 is an odd

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

SalahT

03 Aug 2021, 20:12

1

1,671

by: rajatchopra1994

03 Aug 2021, 20:17

In the accompanying figure, is ABC an isosceles triangle?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

SalahT

04 Aug 2021, 01:33

1

1,345

by: rajatchopra1994

03 Aug 2021, 20:21

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What is the value of the positive integer n? (1) n is divisible by 5

Sub 505 (Easy) | Multiples and Factors, Number Properties

Sub 505 (Easy) | Multiples and Factors, Number Properties hide tags

SalahT

03 Aug 2021, 20:03

2

1,479

by: CrackverbalGMAT

03 Aug 2021, 21:42

In the accompanying figure, points A, B, and C lie on a line. Is B the

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

SalahT

04 Aug 2021, 01:31

1

1,245

by: bansalgaurav

03 Aug 2021, 23:07

Given that 2x + y = 12, what is the value of y? (1) y = 2x + 12

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

SalahT

03 Aug 2021, 07:42

1

1,369

by: bansalgaurav

03 Aug 2021, 23:16

Is n a positive number? (1) 2n + 8 ≥ 4 (2) 4n < 3n

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

SalahT

04 Aug 2021, 08:55

1

947

by: SalahT

04 Aug 2021, 08:55

ER

What is the value of n? (1) |n|=-n (2) n^2 = 25

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

SalahT

03 Aug 2021, 07:36

1

1,517

by: chetan2u

04 Aug 2021, 11:34

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Given that p > 0, is q > 0? (1) p + 2q = 0 (2) pq < 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

SalahT

05 Aug 2021, 18:02

1

2

1,610

by: chetan2u

05 Aug 2021, 20:05

If n is an integer, is n + 5 odd? (1) 2n – 3 is odd (2) 3n + 1 is ev

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

SalahT

09 Aug 2021, 08:21

1

3

1,569

by: bumpbot

18 Oct 2022, 17:36

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A certain circle in the xy-plane has its center at the origin. If P is

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Sallyzodiac

03 May 2016, 07:59

241

18

74,730

by: Bunuel

25 Jan 2024, 08:42

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If k is a positive two-digit integer, what is the tens digit of k?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Sallyzodiac

03 May 2016, 08:15

83

9

24,065

by: bumpbot

31 May 2024, 09:41

ER

If ab 0, is |a - b| > |a + b|? (1) ab < 0 (2) a > b

605-655 (Medium) | Absolute Values, Inequalities

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

Sallyzodiac

06 May 2016, 08:46

503

18

65,032

by: bumpbot

11 Feb 2025, 12:07

ER

The range for a list of measurements equals the greatest measurement

Sub 505 (Easy) | Statistics and Sets Problems

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

Sallyzodiac

06 May 2016, 09:08

71

12

30,568

by: bumpbot

19 Mar 2025, 23:49

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Each of 12 people chose an integer from 1 to 5, inclusive. Did at leas

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Sallyzodiac

06 May 2016, 08:57

166

8

35,034

by: bumpbot

22 Mar 2025, 07:35

ER

The only types of vehicles sold at a certain dealership last month

555-605 (Medium) | Fractions and Ratios

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

Sallyzodiac

03 May 2016, 06:26

61

13

23,013

by: bumpbot

29 Mar 2025, 22:36

ER

Each of the 50 students participating in a workshop is either an under

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Sallyzodiac

03 May 2016, 08:04

210

14

39,835

by: bumpbot

07 Feb 2026, 04:30

ER

Is |x – 5| < 5? (1) x < -4 (2) x < 4

555-605 (Medium) | Absolute Values, Inequalities

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

salopian

14 Jun 2020, 04:16

11

5

4,281

by: bumpbot

12 Jun 2025, 23:58

ER

Julian bought 6 kilograms of cheese from each of Deli A and Deli B. At

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

salr15

24 Jun 2007, 20:46

111

13

15,582

by: bumpbot

24 Aug 2025, 04:03

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

What is the value of 9^p27^(3r)? (1) p = -(9/2)r (2) p + r = 10

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

samarth1222

30 Aug 2022, 06:29

3

4

1,315

by: samarth1222

31 Aug 2022, 05:52

ER

a, b, c, and d are positive integers. If (a + b)(c d) = r, where

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

sambam

16 Jan 2013, 14:31

62

11

18,240

by: bumpbot

30 Jul 2025, 15:09

ER

Point K = (A,0), Point G = (2A + 4, sqrt2A+ 9). Is the dista

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

sambam

29 Oct 2014, 08:37

33

6

18,096

by: bumpbot

17 Jan 2026, 15:47

ER

The table above shows the results of a survey of 100 voters who each

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

1, 2, 3

samrand

14 Jan 2010, 12:15

1.5k

42

139,176

by: DishaAgarwal12

29 Mar 2026, 09:54

ER

The proceeding list of terms is an arithmetic sequence. How many terms

555-605 (Medium) | Arithmetic, Sequences

555-605 (Medium) | Arithmetic, Sequences hide tags

samuelz

01 Apr 2017, 07:12

8

3,019

by: bumpbot

17 Apr 2026, 05:17

ER

If x and y are positive integers, is x2 + x + y + 1 an even number?

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

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

samusa

19 Mar 2015, 22:49

25

8

4,578

by: chetan2u

13 Sep 2021, 10:05

ER

The rectangular mirror has area greater than 10 square cm

805+ (Hard) | Geometry, Inequalities

805+ (Hard) | Geometry, Inequalities hide tags

samusa

31 Mar 2016, 11:18

47

7

6,321

by: bumpbot

03 Aug 2023, 08:41

ER

If abcd is not equal to zero, is abcd <0 ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

samusa

23 May 2018, 01:03

134

17

15,801

by: bumpbot

21 Sep 2024, 23:28

ER

If x, y, and z are all distinct positive integers and the percent

805+ (Hard) | Algebra +2 tags

805+ (Hard) | Algebra, Number Properties, Percent and Interest Problems hide tags

samusa

27 Mar 2016, 13:36

150

14

15,584

by: bumpbot

12 Dec 2025, 01:31

ER

If the average (arithmetic mean) of six numbers j, k, m, n, p, and q

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

sananoor

28 Jul 2017, 04:01

9

5

6,630

by: bumpbot

22 Nov 2022, 07:08

ER

If x is less than 75 percent of y, is x less than 75 ?

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

sananoor

28 Jul 2017, 04:36

25

8

6,521

by: bumpbot

03 Sep 2025, 07:04

ER

If x, y, and z are prime numbers and x < y < z, what is the

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

sandal85

21 May 2012, 00:42

14

6

10,327

by: kchaudhary13

12 Jul 2023, 06:53

ER

Is x greater than 1? (1) 1/x >1 (2) 1/x^5 > 1/x^3

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

1, 2

sandal85

06 Jun 2012, 21:20

67

20

26,996

by: bumpbot

27 Aug 2025, 13:09

ER

What is the value of |x| ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

sandal85

25 May 2012, 00:51

71

10

16,376

by: bumpbot

21 Sep 2025, 23:36

ER

What is the average (arithmetic mean) height of the n people in a cert

555-605 (Medium) | Statistics and Sets Problems

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

sandalphon

20 Dec 2005, 09:03

157

14

63,748

by: bumpbot

06 Jul 2025, 11:04

ER

On his trip from Alba to Benton, Julio drove the first x miles at an

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

sandalphon

21 Oct 2019, 02:24

105

19

25,716

by: KarishmaB

15 Apr 2026, 07:33

ER

What is the value of a?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

sandeepk123

03 Aug 2014, 01:18

17

5

5,042

by: ManifestDreamMBA

06 Apr 2025, 09:19

ER

Vertices of a traingle are at (-2,1) , (3,1) & (x,y) on a

655-705 (Hard) | Coordinate Plane, Geometry

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

sandhyash

18 Feb 2011, 10:13

56

11

13,172

by: bumpbot

01 Apr 2023, 07:03

ER

How many of the 42 people in a group are employed students?

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

sandranjeim

17 Apr 2010, 05:34

89

7

31,657

by: bumpbot

09 Feb 2026, 11:15

ER

To fill an order, a manufacturer had to produce 1000 tools per day for

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

sandranjeim

13 Jun 2019, 02:42

118

13

26,410

by: bumpbot

25 Apr 2026, 03:31

ER

Consider this set of 5 Integers. {7, C, A, T, 23} What is the Sum of

555-605 (Medium) | Statistics and Sets Problems

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

sandykathuria3

29 Nov 2019, 11:19

3

6

1,467

by: globaldesi

01 Dec 2019, 20:45

ER

Is m+10 positive?

Poor Quality

Poor Quality hide tags

sandysilva

18 Dec 2017, 02:58

7

1,825

by: sandysilva

18 Dec 2017, 07:58

ER

A triangle is inscribed in a circle. A point is randomly chosen inside

705-805 (Hard) | Geometry, Probability

705-805 (Hard) | Geometry, Probability hide tags

sandysilva

12 Feb 2018, 08:20

75

11

13,447

by: bumpbot

11 Feb 2026, 19:31

ER

Is x > y ? (1) (x - y)(x - y) > 0 (2) y > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

sang5650

31 Mar 2010, 15:34

3

7

5,012

by: bumpbot

19 Feb 2020, 07:17

ER

What is the value of x?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sanjoo

15 Feb 2014, 02:52

4

3,111

by: taransambi

14 Aug 2014, 06:36

ER

The area of parallelogram QRST is what percent of the area o

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

sanjoo

27 Aug 2016, 01:49

3

4

6,124

by: bumpbot

26 Aug 2016, 08:13

ER

What is value of x?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sanjoo

29 Jun 2012, 09:00

2

5

3,821

by: bumpbot

06 Apr 2017, 01:41

ER

Is the area of a certain square greater than the area of a c

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

sanjoo

23 Feb 2014, 09:23

6

4

3,199

by: bumpbot

22 Dec 2018, 16:21