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

175

15

78,564

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

188,427

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

487,773

by: bb

29 Aug 2025, 13:27

ER

If b > 0 and ax < bx < by, is xy > 0?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

BrentGMATPrepNow

20 Mar 2017, 07:43

15

7

3,501

by: bumpbot

23 Jul 2021, 19:59

ER

If x < -1, is x+y/x+1 < x-y/x-1?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

BrentGMATPrepNow

10 Nov 2020, 09:07

1

3

1,465

by: BrentGMATPrepNow

10 Nov 2020, 17:34

ER

If j and k are positive integers, what is the value of j?

705-805 (Hard) | Absolute Values, Algebra

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

BrentGMATPrepNow

22 Aug 2020, 08:42

14

8

4,423

by: BrentGMATPrepNow

22 Aug 2020, 12:24

ER

If y < 0 < x, is x/y > -1?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

BrentGMATPrepNow

02 Oct 2018, 14:48

10

2,892

by: bumpbot

02 Jul 2020, 00:14

ER

If x < 3, is (x + 1)/(x - 3) > 1/3?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

BrentGMATPrepNow

10 Feb 2017, 09:16

26

6

5,327

by: exc4libur

19 Nov 2019, 05:25

ER

What is the greatest common divisor of positive integers J and K ?

705-805 (Hard) | Multiples and Factors

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

BrentGMATPrepNow

31 Oct 2016, 08:01

8

2

2,765

by: bumpbot

10 Jul 2019, 14:25

ER

If x and y are positive integers, what is the value of x + y?

605-655 (Medium) | Percent and Interest Problems

605-655 (Medium) | Percent and Interest Problems hide tags

BrentGMATPrepNow

19 Feb 2019, 09:43

5

3

2,012

by: BrentGMATPrepNow

12 Apr 2019, 08:35

ER

Is positive integer k the square of an integer?

705-805 (Hard) | Out of Scope - Too Hard

705-805 (Hard) | Out of Scope - Too Hard hide tags

BrentGMATPrepNow

27 Feb 2019, 18:11

4

2,911

by: ocelot22

01 Mar 2019, 15:08

ER

Joe’s restaurant has exactly 3 items on its menu: Prawns Only

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

BrentGMATPrepNow

22 May 2018, 07:05

3

1,760

by: BrentGMATPrepNow

25 May 2018, 13:21

ER

What is the ratio of a : b : c?

505-555 (Easy) | Fractions and Ratios

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

BrentGMATPrepNow

06 Sep 2016, 11:57

2

1

3,980

by: Senthil1981

06 Sep 2016, 08:33

ER

Is it true that a > b? (1) 2a > 2b (2) a + c > b + c

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

briozeal

29 Mar 2012, 06:17

11

6

15,950

by: bumpbot

13 Dec 2023, 10:42

ER

Last Friday a certain shop sold 3/4 of the sweaters in its

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

broall

04 Feb 2018, 03:17

18

3

7,922

by: bumpbot

14 Dec 2025, 03:10

ER

Company M has two divisions - X and Y. Each division

655-705 (Hard) | Fractions and Ratios

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

broall

15 Jul 2017, 08:38

126

15

19,544

by: Vaishbab

03 Sep 2025, 05:20

What is the number of female employees in Company X ?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

broall

21 Feb 2018, 01:55

11

2

14,151

by: bumpbot

18 Jul 2025, 14:04

ER

Is n an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

broall

12 Apr 2017, 22:08

7

6

3,076

by: bumpbot

19 Oct 2024, 21:07

ER

Is the triangle above equilateral?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

broall

04 Feb 2018, 03:20

14

5

12,068

by: bumpbot

12 Jan 2024, 08:34

ER

If n is an integer, is (100-n)/n an integer?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

broall

31 Oct 2018, 09:42

16

4

10,582

by: bumpbot

15 May 2022, 01:18

ER

If x, y, and z are positive numbers, is x < y < z ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

brobeedle

16 Apr 2014, 07:21

4

3,967

by: bumpbot

02 Jan 2025, 15:32

ER

If x, y and z are all no-zero numbers, what is the value of z = (x-y)/

705-805 (Hard) | Absolute Values, Algebra

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

brockr1

27 Apr 2016, 01:26

31

6

4,771

by: bumpbot

02 Mar 2025, 04:17

ER

If x is positive, is x prime?

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

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

brockr1

02 Apr 2016, 09:34

22

17

6,499

by: bumpbot

19 Jun 2023, 09:19

ER

555-605 (Medium) | Algebra, Word Problems

555-605 (Medium) | Algebra, Word Problems hide tags

broilerc

06 May 2016, 09:20

134

10

34,063

by: bumpbot

30 Oct 2025, 06:30

ER

If b and c are constants for which the quadratic equation x^2+bx+c=0

555-605 (Medium) | Algebra, Roots

555-605 (Medium) | Algebra, Roots hide tags

broilerc

05 May 2016, 08:41

223

12

46,959

by: bumpbot

03 Feb 2025, 05:46

ER

A certain company operates a website, Z,

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Brownbatman

20 Nov 2025, 13:40

12

3

1,748

by: keshubhturakhia

21 Apr 2026, 08:08

ER

What is the tenth term in a series of 89 consecutive

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

brstorewala

17 May 2003, 03:00

31

16

11,941

by: bumpbot

28 Jun 2023, 02:18

ER

What is the sum of all 50 numbers in a list?

Sub 505 (Easy) | Statistics and Sets Problems

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

brunora

04 Sep 2014, 16:53

14

4

8,359

by: bumpbot

05 Apr 2019, 09:27

ER

In a group of 25 people, only three languages are spoken – English, Sp

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

bsahil

21 Aug 2013, 23:27

76

14

21,023

by: bumpbot

19 Dec 2025, 06:17

ER

In the table above is shown the percent reduction in the

805+ (Hard) | Percent and Interest Problems, Word Problems

805+ (Hard) | Percent and Interest Problems, Word Problems hide tags

bschool83

23 Jul 2011, 21:12

56

7

12,933

by: PocusFocus

10 Jul 2025, 17:22

ER

For all non zero integers n, n*=(n+2)/n. What is the value

605-655 (Medium) | Algebra, Functions and Custom Characters

605-655 (Medium) | Algebra, Functions and Custom Characters hide tags

bschool83

24 Jul 2011, 12:41

37

13

10,069

by: bumpbot

15 Jun 2025, 22:43

ER

If x, y, and z are consecutive integers, and x < y < z , is x even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

bschool83

04 Oct 2017, 01:13

4

3,527

by: bumpbot

21 Nov 2018, 20:02

ER

Edna has exactly 73 cents in her pocket, in dimes, nickels, and pennie

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

bschoolboy2017

18 Apr 2017, 23:32

4

3

3,046

by: bumpbot

21 Jan 2025, 09:55

ER

In the xy-coordinate plane, line L and line k intersect at the point

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

1, 2

bsjames2

18 Feb 2008, 19:01

273

22

41,444

by: bumpbot

19 Dec 2025, 10:19

ER

What is the value of x? (1) |y^2 - 4| = x + 2 (2) |5 - x| = 9

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

btrg

16 Apr 2019, 09:04

8

5

1,824

by: bumpbot

30 Dec 2023, 04:34

If a and b are integers and ab does not equal 0, is ab > 0?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

btrg

18 Apr 2019, 09:29

8

7

1,929

by: bumpbot

06 Sep 2023, 10:43

The total manufacturing cost of product P is equal to the sum of produ

605-655 (Medium) | Percent and Interest Problems

605-655 (Medium) | Percent and Interest Problems hide tags

btrg

16 Apr 2019, 09:29

3

2,366

by: bumpbot

08 Aug 2023, 05:19

ER

If p and q are non-zero integers and |p| + |q| = 25, what is pq?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

btrg

16 Apr 2019, 09:14

6

3

2,286

by: bumpbot

03 Feb 2022, 09:09

ER

If a and b are integers, is ab > 0? (1) b = a (2) a > 2

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

btrg

16 Apr 2019, 09:10

2

4

1,978

by: chetan2u

14 Oct 2020, 05:46

ER

In the circle above, length of chord PR is 40 units. What is the circu

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

btrg

16 Apr 2019, 00:41

5

2

1,773

by: Shishou

19 May 2020, 13:10

ER

Is k < 0? (1) |2k + 5| = 3k + 1 (2) |k - 2| = 7k

Poor Quality

Poor Quality hide tags

btrg

16 Apr 2019, 20:25

11

5

2,767

by: Bunuel

21 Oct 2019, 20:38

ER

Taps P, Q and R fill identical tasks at different constant rates. Tap

Poor Quality

Poor Quality hide tags

btrg

25 Apr 2019, 08:03

2

1

918

by: IanStewart

25 Apr 2019, 09:03

For positive integer a, is the expression [m](a - 4)(a^2 + 5a + 6[/m]

555-605 (Medium) | Algebra, Coordinate Plane

555-605 (Medium) | Algebra, Coordinate Plane hide tags

btrg

18 Apr 2019, 09:48

3

1,323

by: medic19

23 Apr 2019, 04:54

ER

If 0 < a < b, is b - a < 0.00003?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

btrg

16 Apr 2019, 09:23

2

972

by: ghostSatyendra

16 Apr 2019, 21:41

ER

If 15 is a factor of p as well as q, is 15 the highest common factor?

705-805 (Hard) | Multiples and Factors

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

buan15

18 Jun 2020, 09:39

22

6

3,916

by: licrolicro

01 May 2025, 14:33

ER

Given an integer a, a rectangle's adjacent sides measure (a + 2) inche

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

buan15

05 Aug 2020, 00:38

10

4

2,838

by: Kinshook

05 Aug 2020, 09:50

ER

If x#0, is 1/x + 1/y = 4 ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

buguy7

31 May 2013, 05:56

5

3

3,119

by: bumpbot

08 Mar 2023, 09:08

ER

A library uses the overdue-fee schedule shown below to

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

BukrsGmat

13 Jul 2012, 04:59

7

3

6,942

by: bumpbot

08 Oct 2025, 10:24

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

4,867

by: Bunuel

30 Oct 2017, 11:52

ER

Is y!/x! an integer?

Poor Quality

Poor Quality hide tags

BukrsGmat

13 Jul 2012, 04:17

7

10

7,596

by: akshayk

13 Jun 2017, 22:34

ER

A cafe has a lunch special with a base price of $5.00.

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

BukrsGmat

09 Aug 2012, 23:30

11

3

4,885

by: dd29

15 Sep 2014, 03:40

ER

Martha bought several pencils. If each pencil was either a

555-605 (Medium) | Algebra, Word Problems

555-605 (Medium) | Algebra, Word Problems hide tags

1, 2

Bull78

01 Sep 2010, 10:02

390

26

63,874

by: totaltestprepNick

03 Mar 2026, 13:50

ER

If k does not equal 0, 1 or -1, is 1/k > 0 (1) 1/(k-1) > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bull78

10 Aug 2010, 12:05

80

14

31,437

by: bumpbot

03 Jun 2025, 23:27