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

182

15

82,974

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of May 2026

1, 2

Bunuel

01 Jan 2026, 05:45

862

24

191,183

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

491,106

by: bb

29 Aug 2025, 13:27

ER

If n is a positive integer, is (1/10)^n < 0.01?

555-605 (Medium) | Exponents, Inequalities

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

tkaelle

16 Mar 2012, 10:04

217

18

48,974

by: totaltestprepNick

28 Feb 2026, 14:29

ER

Machines A and B each produce tablets at their respective co

805+ (Hard) | Work and Rate Problems

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

1, 2

tk1tez7777

05 Oct 2013, 04:32

193

20

27,563

by: bumpbot

08 Jun 2025, 11:49

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If a + b + c > 0, is c > 2?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

tjerkrintjema

10 Jun 2015, 04:35

17

5

3,442

by: bumpbot

24 Mar 2025, 23:41

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If a and b are positive integers larger than 1, is a^b > b^a?

805+ (Hard) | Arithmetic

805+ (Hard) | Arithmetic hide tags

tjerkrintjema

12 Jun 2015, 16:22

20

13

8,714

by: IanStewart

08 Sep 2020, 09:17

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What is the value of z?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

tissime

16 May 2013, 03:41

5

6

4,218

by: v12345

19 Sep 2021, 21:36

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If N & S are two numbers on the number line then what is

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

tirupatibalaji

08 Jan 2011, 14:18

27

6

5,670

by: Bunuel

19 Mar 2025, 00:44

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Is a^2 + b^2 > c^2 ? (1) a^3 + b^3 > c^3 (2) a + b > c

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

tirupatibalaji

06 Jan 2011, 04:06

9

14

5,957

by: bumpbot

13 Sep 2023, 12:21

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For a certain set of 3 numbers, is the average(arithmetic mean) equal

555-605 (Medium) | Statistics and Sets Problems

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

tirupatibalaji

15 Jan 2011, 14:33

6

4,589

by: mbaaspirant80

25 Jul 2017, 00:40

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If R & S are consecutive Odd integers, then is R>S?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

tirupatibalaji

09 Jan 2011, 06:23

3

2

3,044

by: bumpbot

29 Mar 2017, 06:08

ER

If John's average (arithmetic mean) score for three games of pinball

555-605 (Medium) | Statistics and Sets Problems

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

TippingPoint93

26 Jun 2018, 19:16

1

4

1,789

by: TippingPoint93

26 Jun 2018, 21:37

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If p<q and p<r, is pqr<p? (1) pq<0 (2) pr<0

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

tinki

28 Apr 2016, 14:30

102

7

34,310

by: imaityaroy

07 Dec 2025, 19:58

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If S is a set of integers and 5 is in S, is every multiple

655-705 (Hard) | Statistics and Sets Problems

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

tingjojo

17 May 2011, 06:59

18

10

6,407

by: bumpbot

22 Jun 2025, 19:43

ER

Julie opened a lemonade stand and sold lemonade in two diff

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

tim415

03 Nov 2012, 22:23

44

17

15,528

by: bumpbot

21 Oct 2025, 02:52

ER

If George had 16 more textbooks, he would have three times

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

tim415

27 Dec 2012, 09:56

24

14

9,286

by: bumpbot

30 Mar 2023, 05:21

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Was the median height of the 25 children in a certain class at least 2

655-705 (Hard) | Statistics and Sets Problems

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

tickledpink001

24 Jan 2024, 01:26

98

8

14,930

by: Borrat

22 Mar 2026, 07:09

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

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

tiagolfr

16 Oct 2017, 07:39

25

8

13,677

by: bumpbot

16 Oct 2024, 07:01

The symbols, #, &, @, $, represent non zero digits. If #2

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

Thoughtosphere

06 Mar 2013, 03:12

2

9

4,036

by: bumpbot

25 Dec 2025, 07:26

ER

A souvenir stand began the day Wednesday with a ratio of 13 hats for

655-705 (Hard) | Number Properties, Word Problems

655-705 (Hard) | Number Properties, Word Problems hide tags

Thoughtosphere

22 Oct 2014, 04:00

30

7

7,063

by: bumpbot

18 Feb 2023, 14:19

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If s = (x + y)^2 and t = (x - y)^2, what is the value of 2^s/2^t ?

505-555 (Easy) | Algebra, Exponents

505-555 (Easy) | Algebra, Exponents hide tags

ThomasR22

15 Sep 2020, 07:30

16

3

6,984

by: bumpbot

02 Jul 2024, 03:43

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If n is a positive real number, is n an integer? 1. n^2 is not an int

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

thisisit25

19 Dec 2022, 01:17

1

824

by: chetan2u

19 Dec 2022, 20:12

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A certain mixture is made up of compounds A, B, and C. Compound B acco

805+ (Hard) | Mixture Problems

805+ (Hard) | Mixture Problems hide tags

thinkvision

29 Aug 2020, 05:58

35

7

6,834

by: bumpbot

28 Jun 2025, 12:28

ER

A company produces and sells two different products. Product A sells f

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

thinkvision

29 Aug 2020, 06:16

15

8

7,861

by: IanStewart

24 Sep 2021, 06:24

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

16,024

by: bumpbot

14 Dec 2025, 01:23

ER

What percent of the students at Jefferson High School study

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

thinktank

23 Mar 2013, 12:32

22

7

19,827

by: bumpbot

01 Oct 2024, 01:54

ER

What is the thousandths digit of the decimal p ?

505-555 (Easy) | Fractions and Ratios

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

thevenus

17 Oct 2012, 07:05

17

7

8,719

by: bumpbot

29 Nov 2025, 13:53

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If a, b, and c are positive integers, what is the remainder

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

thevenus

10 Oct 2012, 14:56

23

4

7,061

by: bumpbot

30 Apr 2024, 18:59

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If x is a not-zero number, is x^2 + 2x > x^2 + x?

655-705 (Hard) | Algebra, Inequalities

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

thevenus

28 Dec 2023, 23:49

3

6

4,947

by: Bunuel

13 Jan 2024, 13:46

ER

Is MN Odd?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

thevenus

11 Oct 2012, 00:13

1

5

3,507

by: bumpbot

20 Jan 2021, 10:43

ER

If the symbol ⍟ denotes addition or multiplication, what is the value

555-605 (Medium) | Functions and Custom Characters

555-605 (Medium) | Functions and Custom Characters hide tags

TheUltimateWinner

05 Feb 2021, 11:47

1

2

1,474

by: bumpbot

09 Jan 2026, 11:47

ER

Consider natural numbers m and n both less than 100. Is m/n a terminat

655-705 (Hard) | Fractions and Ratios, Number Properties

655-705 (Hard) | Fractions and Ratios, Number Properties hide tags

TheUltimateWinner

15 Jun 2019, 10:21

12

3

2,905

by: bumpbot

03 Nov 2025, 23:56

In a set S={x,12,12,12,14,10,8}, is x positive? 1) The mode of S is gr

605-655 (Medium) | Statistics and Sets Problems

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

TheUltimateWinner

11 Aug 2019, 09:37

7

2

1,753

by: bumpbot

17 Sep 2025, 03:20

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Is the HCF of a and b an odd number? 1) HCF of (a+103) and (b+2) is an

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

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

TheUltimateWinner

06 Jun 2019, 09:52

22

6

2,964

by: bumpbot

04 Sep 2025, 12:01

ER

What is the remainder when the three-digit integer n is divided by 9?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

TheUltimateWinner

25 Dec 2020, 08:28

15

8

3,041

by: bumpbot

03 Sep 2025, 11:48

ER

Consider three positive numbers x, y, and z such that x>y>z. If M is t

705-805 (Hard) | Statistics and Sets Problems

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

TheUltimateWinner

26 Aug 2019, 08:29

9

3

5,474

by: Muqeet

12 Aug 2025, 23:01

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The average of Set S is greater than that of Set B. Is the median of S

555-605 (Medium) | Statistics and Sets Problems

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

TheUltimateWinner

23 Aug 2019, 09:38

2

3

2,429

by: bumpbot

02 Aug 2025, 04:53

ER

Is p^2 divisible by 24? p is an integer. 1) p is divisible by 6 2) p^3

655-705 (Hard) | Multiples and Factors

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

TheUltimateWinner

19 Apr 2019, 09:15

7

4

2,712

by: bumpbot

15 Jul 2025, 14:34

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If p is a positive integer, what is the remainder when p2-1 is divide

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

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

TheUltimateWinner

16 Sep 2020, 08:24

22

6

4,669

by: bumpbot

25 May 2025, 19:30

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The average of set S comprising 5 non-zero integers is 0. What is its

705-805 (Hard) | Statistics and Sets Problems

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

TheUltimateWinner

22 Sep 2019, 12:17

7

9

3,022

by: bumpbot

14 May 2025, 15:21

ER

If y is a positive integer, is y/8 an integer?

605-655 (Medium) | Multiples and Factors, Number Properties

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

TheUltimateWinner

19 Dec 2020, 10:41

6

5

2,006

by: bumpbot

05 Apr 2025, 03:36

a, b, and c are positive integers such that a+b+c=5. What is the media

655-705 (Hard) | Statistics and Sets Problems

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

TheUltimateWinner

20 Aug 2019, 10:30

3

2

1,828

by: bumpbot

28 Mar 2025, 21:15

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What is the largest prime factor of (2^a+2^b)^2, where a and b are pos

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

TheUltimateWinner

12 Nov 2020, 13:55

4

5

1,612

by: Bunuel

05 Mar 2025, 00:10

Is b is the median of 3 numbers a, b, and c? (1) b/a = c/b (2) ab < 0

705-805 (Hard) | Statistics and Sets Problems

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

TheUltimateWinner

01 Oct 2019, 12:18

4

3

1,776

by: bumpbot

02 Feb 2025, 07:37

Is n an even integer? 1) n/6 is an odd integer 2) n+5 is an odd intege

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

TheUltimateWinner

03 Nov 2020, 11:06

3

2,041

by: Happysumit007

20 Jan 2025, 12:02

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A certain list consists of several consecutive integers. How many inte

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

TheUltimateWinner

04 Dec 2020, 09:24

7

3

1,887

by: bumpbot

09 Jan 2025, 19:57

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If y ≠ 0, what is the value of 6^(x-y)^2/6^(x+3)(x-3)?

605-655 (Medium) | Exponents

605-655 (Medium) | Exponents hide tags

TheUltimateWinner

22 Feb 2020, 09:41

9

5

3,512

by: bumpbot

18 Dec 2024, 09:09

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Is (x - 2)(x - 3) > 0? (1) x - 2 > 0 (2) x - 3 < 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

TheUltimateWinner

18 Oct 2023, 00:07

8

5

3,359

by: bumpbot

24 Nov 2024, 01:28

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If x is a positive integer, how many factors does x^2 have?

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

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

TheUltimateWinner

22 May 2019, 10:07

5

4

2,466

by: bumpbot

20 Nov 2024, 05:00

ER

50 animals competed for prizes at a certain fair. How many of the anim

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

TheUltimateWinner

03 Jun 2020, 13:25

3

2

2,349

by: bumpbot

01 Oct 2024, 02:21

ER

50 animals competed for prizes at a certain fair. How many of the anim

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

TheUltimateWinner

03 Jun 2020, 13:27

3

8

3,124

by: bumpbot

01 Oct 2024, 02:20

50 animals competed for prizes at a certain fair. How many of the anim

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

TheUltimateWinner

03 Jun 2020, 13:26

6

3

3,104

by: bumpbot

01 Oct 2024, 02:16