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

178

15

79,037

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,707

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

488,240

by: bb

29 Aug 2025, 13:27

ER

In a gas sample, there are, rounded to the nearest order of magnitude

805+ (Hard) | Exponents, Word Problems

805+ (Hard) | Exponents, Word Problems hide tags

guddo

31 May 2025, 15:58

63

8

3,708

by: Bunuel

17 Jan 2026, 00:15

ER

Last Saturday a certain circus charged $6 per adult ticket and $3 per

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

guddo

24 Jan 2024, 02:25

29

4

5,804

by: bumpbot

20 Jan 2026, 10:13

ER

A company makes bolts of only two sizes: small and large. Each small

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

guddo

24 Jan 2024, 03:37

74

9

11,934

by: bumpbot

27 Jan 2026, 04:50

ER

A certain catering company's cost to cater a dinner for n people is 5

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

guddo

24 Jan 2024, 01:17

86

8

14,567

by: Bunuel

30 Jan 2026, 03:20

A store purchased coats from a manufacturer at $40 each and then sold

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

guddo

24 Jan 2024, 02:41

21

3

6,359

by: bumpbot

30 Jan 2026, 04:42

ER

Amy, Brianne, and Cedric will each choose exactly 1 container, Contain

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

guddo

24 Jan 2024, 03:55

77

11

11,606

by: GMATNinja

30 Jan 2026, 13:48

ER

Does it benefit a company overall to invest in employee training?

655-705 (Hard) | Non-Math Related

655-705 (Hard) | Non-Math Related hide tags

guddo

13 Aug 2024, 01:26

127

19

11,582

by: XLmafia21

17 Mar 2026, 10:16

ER

Does effective advertising require a higher budget expense than

505-555 (Easy) | Non-Math Related

505-555 (Easy) | Non-Math Related hide tags

guddo

14 Aug 2024, 07:17

22

4

4,173

by: JustKeepGoing

22 Mar 2026, 02:13

ER

What are some possible signs of impending rainfall in Exville today?

Sub 505 (Easy) | Non-Math Related

Sub 505 (Easy) | Non-Math Related hide tags

guddo

14 Aug 2024, 02:39

14

4

4,265

by: JustKeepGoing

22 Mar 2026, 02:20

ER

Can regular exercise reduce the risk of chronic diseases?

Sub 505 (Easy) | Non-Math Related

Sub 505 (Easy) | Non-Math Related hide tags

guddo

14 Aug 2024, 09:38

11

9

4,116

by: JustKeepGoing

22 Mar 2026, 02:28

ER

What is the length of Train A if it crosses Bridge X in 30 seconds

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

1, 2

guddo

30 May 2024, 10:59

127

27

12,942

by: Gmat860sanskar

09 Apr 2026, 11:30

Andrew and Clair each purchased a book, and the list prices of their

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

guddo

24 Jan 2024, 03:59

9

2

3,874

by: bumpbot

11 Apr 2026, 03:01

ER

A company has a total of 1,650 employees, some of whom are office work

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

guddo

24 Jan 2024, 02:13

43

4

11,426

by: Harsh_

14 Apr 2026, 07:42

ER

If 50 people paid a total of $110 for tickets to attend a certain high

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

guddo

24 Jan 2024, 04:15

35

3

8,654

by: keshubhturakhia

26 Apr 2026, 04:50

ER

Of the 40 researchers at a certain company, 60 percent work on project

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

guddo

24 Jan 2024, 02:39

30

9

8,347

by: Harsh_

26 Apr 2026, 11:11

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

113

14

10,694

by: bumpbot

05 May 2026, 08:44

ER

At a certain banquet, meals were served in only 2 locations. In the

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

guddo

24 Jan 2024, 03:53

66

9

10,279

by: RSaurastri

05 May 2026, 23:24

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

Poor Quality

Poor Quality hide tags

guerrero25

13 Apr 2013, 12:00

4

5

3,789

by: mau5

15 Apr 2013, 11:09

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

40

10

9,422

by: bumpbot

10 Sep 2015, 01:22

ER

N is an integer. Is N negative ?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

guerrero25

18 Jun 2013, 15:49

10

11

3,176

by: akshayk

12 Aug 2017, 05:42

ER

What is the difference of the integers m and n ?

655-705 (Hard) | Absolute Values, Inequalities

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

guerrero25

18 Jun 2013, 15:41

18

10

4,661

by: bumpbot

13 Jun 2019, 22:57

ER

Sue purchased several identical brooms at Gigamart.

555-605 (Medium) | Percent and Interest Problems

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

guerrero25

21 Feb 2014, 06:52

6

3

8,985

by: MHIKER

12 Nov 2020, 15:23

ER

Two sets, M and Q, include only consecutive multiples of 5

655-705 (Hard) | Statistics and Sets Problems

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

guerrero25

21 Mar 2013, 11:10

7

6

4,068

by: IanStewart

22 Jun 2021, 08:23

ER

If z is a multiple of 9 and w is a multiple of 4, is zw

555-605 (Medium) | Multiples and Factors

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

guerrero25

27 Aug 2013, 02:36

18

9

6,629

by: bumpbot

13 Jan 2022, 08:01

ER

Is |x5|>4?

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

guerrero25

20 Feb 2013, 11:08

29

17

9,689

by: bumpbot

27 Jul 2022, 10:24

ER

Is the range of the 5 numbers in the list above less than 30

555-605 (Medium) | Statistics and Sets Problems

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

guerrero25

19 Sep 2013, 02:22

18

5

9,864

by: bumpbot

25 Dec 2022, 10:06

ER

There are three circles, with radii 2, 4 and 5, respectively

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

guerrero25

15 Jun 2013, 13:26

17

9

6,532

by: bumpbot

26 Mar 2023, 11:57

ER

If w, x and y are integers such that w < x < y, are w, x and

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

guerrero25

12 Nov 2013, 14:05

18

4

8,515

by: bumpbot

11 May 2023, 21:37

ER

In the graph shown above, which sector represents the $9.6

705-805 (Hard) | Graphs and Illustrations

705-805 (Hard) | Graphs and Illustrations hide tags

guerrero25

30 Oct 2013, 00:18

94

16

17,546

by: bumpbot

15 May 2024, 13:23

In the graph above ,if divisions K and L togather

505-555 (Easy) | Graphs and Illustrations

505-555 (Easy) | Graphs and Illustrations hide tags

guerrero25

31 Oct 2013, 02:44

20

4

10,008

by: ADisHere

15 May 2024, 13:27

ER

If j and k are positive integers and j + k is odd

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

guerrero25

04 Feb 2014, 08:53

13

5

6,843

by: bumpbot

26 Jul 2024, 02:18

ER

It is known that cuberoot (r) is a positive integer

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

guerrero25

21 Mar 2013, 04:56

10

4

3,942

by: bumpbot

16 Aug 2024, 07:48

ER

In the xy-plane shown, is the slope of the line L negative ?

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

guerrero25

22 Mar 2018, 00:13

31

10

14,759

by: bumpbot

06 Sep 2024, 11:47

ER

A new electric car company holds a limited-time sales event.

805+ (Hard) | Statistics and Sets Problems

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

guerrero25

20 May 2013, 11:18

30

7

6,513

by: bumpbot

11 Apr 2025, 01:59

ER

If x and y are integers, is (x−1)>y?

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

guerrero25

04 Feb 2014, 15:43

33

10

8,579

by: bumpbot

02 Jun 2025, 08:52

ER

Given n>5 , when (n!+n+1) is divided by (n+1)

705-805 (Hard) | Number Properties, Remainders

705-805 (Hard) | Number Properties, Remainders hide tags

guerrero25

04 Feb 2014, 17:15

121

14

11,645

by: OSHO1310

28 Jun 2025, 10:07

ER

To raise funds, a racing team sold T-shirts imprinted with

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

guerrero25

30 Oct 2013, 16:01

86

11

21,804

by: bumpbot

16 Jul 2025, 01:02

ER

What is the value of x ? (1) x^4 = |x| (2) x^2 > x

555-605 (Medium) | Absolute Values, Inequalities

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

guerrero25

11 Feb 2013, 01:09

33

3

7,495

by: bumpbot

14 Aug 2025, 07:04

ER

A Pierpont prime is any prime number p such that p = (2^k)(3^l) + 1

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

guerrero25

25 Jan 2014, 07:36

96

18

18,826

by: bumpbot

22 Nov 2025, 00:29

ER

If a = b/c, is a > b? (1) 0 < c < 1 (2) a > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

guerrero25

27 Sep 2023, 03:24

4

2

4,123

by: bumpbot

01 Jan 2026, 05:21

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

4,935

by: bumpbot

08 Jan 2026, 23:01

x is the sum of three consecutive multiples of 999. Is x eve

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Gumowl

09 Oct 2020, 00:44

1

3

1,008

by: XyLan

09 Oct 2020, 03:22

ER

Does the integer g have a factor f such that 1 < f < g ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

gupta87

12 Feb 2017, 07:43

62

8

11,769

by: bumpbot

11 May 2023, 05:06

ER

At Consolidated Foundries, for a resolution to become policy, a quorum

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

gurasis1

30 Oct 2017, 06:06

21

7

7,749

by: bumpbot

24 Mar 2026, 09:17

ER

Is the two digit positive integer P a prime number?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

gurpreetsingh

14 Sep 2014, 17:29

345

19

32,321

by: Bunuel

17 Mar 2025, 23:41

ER

In a cookie-eating contest, there are 200 cookies provided

Poor Quality

Poor Quality hide tags

guygmat

18 Jun 2011, 21:03

9

17

10,063

by: bumpbot

13 Sep 2016, 06:29

ER

What is the volume of rectangular box Q? (1) Two adjacent

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

guygmat

19 Jun 2011, 08:02

2

3

4,077

by: Bunuel

04 Dec 2017, 00:21

ER

Is the value of the perimeter of rectangle R greater than

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

guygmat

19 Jun 2011, 23:20

6

9

5,957

by: prabsahi

07 Jul 2019, 22:04

ER

Is the ratio of the area of circle A to the area of square B

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

guygmat

19 Jun 2011, 23:22

3

7

4,794

by: bumpbot

29 Jan 2022, 19:28

ER

How long does it take a particular jet to fly from its base

555-605 (Medium) | Distance and Speed Problems, Word Problems

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

guygmat

20 Jun 2011, 21:10

19

10

6,398

by: bumpbot

30 Oct 2023, 01:56