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

78,578

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

188,434

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

487,780

by: bb

29 Aug 2025, 13:27

ER

Today, Samson’s Train traveled at a constant rate along a st

555-605 (Medium) | Distance and Speed Problems

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

SleeB

24 Nov 2013, 15:51

26

10

7,819

by: bumpbot

11 Mar 2026, 05:45

ER

Is |ab| > -ab?

705-805 (Hard) | Absolute Values, Inequalities

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

SleeB

27 Oct 2013, 15:46

19

13

3,896

by: askul2389

11 Apr 2017, 08:00

Is n divisible by 11 with no remainder?

705-805 (Hard) | Multiples and Factors

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

sldisek783

29 Sep 2023, 12:35

1

5

1,535

by: Tukkebaaz

30 Sep 2023, 07:44

ER

Last month a phone company charged $ 0.07 per minute for the first 300

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Skywalker18

20 Jun 2016, 11:04

188

18

40,559

by: bumpbot

21 Apr 2026, 03:10

ER

What is the hundreds digit of the integer Z?

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

Skywalker18

20 Jun 2016, 11:14

113

8

33,699

by: bumpbot

15 Jul 2025, 20:01

ER

What is the tens digit of the positive integer n ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Skywalker18

19 Jun 2016, 10:33

138

9

29,192

by: bumpbot

07 Apr 2025, 09:36

ER

If x and z are positive integers, is x^2 - z^2 odd?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Skywalker18

15 Aug 2017, 13:04

11

6

4,350

by: bumpbot

25 Apr 2024, 01:34

ER

What is the standard deviation of the values of the 20 coins in a

Sub 505 (Easy) | Statistics and Sets Problems

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

Skywalker18

20 Jun 2016, 11:09

26

5

21,544

by: Bunuel

27 Dec 2023, 23:54

ER

If R is the radius of a certain circle, is the area of this circle

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Skywalker18

23 Oct 2017, 07:48

3

2,298

by: Bunuel

23 Oct 2017, 21:19

ER

What is the value of x?

555-605 (Medium) | Roots

555-605 (Medium) | Roots hide tags

skylimit

10 Sep 2015, 12:33

9

8

3,928

by: bumpbot

15 Dec 2025, 04:40

ER

If the price of a magazine is to be doubled, by what percent

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

sky

08 Jul 2010, 04:04

40

9

13,727

by: bumpbot

04 Mar 2025, 19:55

ER

Is x a positive integer? (1) x > 0 (2) x^2 + 16 = 25

555-605 (Medium) | Algebra, Number Properties

555-605 (Medium) | Algebra, Number Properties hide tags

Skn1608

07 Jan 2019, 02:00

10

5

2,283

by: aggvipul

07 Jan 2019, 11:45

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

5,524

by: bumpbot

23 Oct 2025, 15:49

ER

After winning 30 percent of the first 50 games it played

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Skientist

11 Nov 2012, 13:39

22

6

7,213

by: anirchat

17 Feb 2025, 00:40

ER

In the xy-plane, does the line with the equation y = 2x - 4 contain

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

Skientist

04 Dec 2017, 00:18

60

13

10,874

by: Kushchokhani

19 Apr 2022, 06:01

What is the median of 5 integers? 1) 3 numbers of them are the same va

505-555 (Easy) | Min-Max Problems

505-555 (Easy) | Min-Max Problems hide tags

skidstorm

19 Mar 2018, 17:35

2

3

3,462

by: bumpbot

22 May 2024, 21:37

ER

A building has $!48$! one- and two-bedroom apartments to rent, some wi

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

skidstorm

15 Mar 2018, 22:49

9

5

2,891

by: exc4libur

14 Nov 2019, 04:47

Rakesh Bought 3 Shares of Power Infra. One on 31st April'24, one on 23

655-705 (Hard) | Math Related, Word Problems

655-705 (Hard) | Math Related, Word Problems hide tags

Sketchitesh

02 Apr 2025, 09:46

4

3

1,103

by: BongBideshini

13 Apr 2026, 22:04

ER

There are 19 batters on a baseball team. Every batter bats either righ

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

skamal7

11 Nov 2018, 21:41

28

11

9,887

by: bumpbot

13 Jul 2025, 09:37

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

16,608

by: bumpbot

17 May 2025, 06:19

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

10,264

by: bumpbot

18 Nov 2023, 19:05

ER

Is ABCD rectangular

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

1, 2

skamal7

20 Jul 2013, 09:46

54

22

11,367

by: bumpbot

05 Feb 2023, 00:14

ER

What is the value of x?

655-705 (Hard) | Statistics and Sets Problems

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

sje12

15 May 2023, 12:19

13

3

8,082

by: bumpbot

25 Oct 2023, 07:46

ER

In a certain game only one player can win and only one player always

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

SivaKumarP

24 Apr 2015, 02:28

39

15

10,123

by: bumpbot

27 Jun 2025, 00:31

ER

How many of the numbers a, b, and c are positive if each of these

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Sisrikhya

06 Aug 2023, 19:09

6

4

1,458

by: Bunuel

12 Aug 2023, 03:18

ER

What is the ratio of y to x?

Poor Quality

Poor Quality hide tags

SirGMAT

02 Dec 2014, 08:21

15

6

7,079

by: Bunuel

02 Dec 2014, 08:21

ER

If the original price of an item in a retail store is marked

805+ (Hard) | Percent and Interest Problems

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

singhmaharaj

26 Nov 2013, 07:12

80

9

16,716

by: bumpbot

04 Jul 2025, 15:29

ER

How much special mix must one add to a certain recipe for pa

705-805 (Hard) | Mixture Problems

705-805 (Hard) | Mixture Problems hide tags

singhaldheeraj

28 Jun 2014, 04:41

47

13

13,271

by: NuttyIan

17 Jun 2025, 08:23

ER

If p and q are negative integers, is p>q? (1) p < 2q - 3 (2) q > 3p

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Singh997

03 Apr 2022, 04:41

2

4

2,728

by: Bunuel

03 Apr 2022, 06:16

ER

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

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Simba87

14 Aug 2018, 02:55

13

6

7,704

by: bumpbot

27 Jan 2023, 05:52

ER

If 4x = 5y = 10z, what is the value of x + y + z ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

SimaQ

05 Apr 2015, 04:44

55

11

20,516

by: bumpbot

25 Mar 2025, 18:57

ER

The total charge to rent a car for one day from Company J consists of

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Silviax

15 Sep 2020, 05:15

13

7

9,916

by: bumpbot

18 Jul 2023, 05:37

ER

If xyz ≠ 0, is 3x/2 + y + 2z = 7x/2 + y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Silviax

13 May 2016, 07:12

4

8

4,923

by: bumpbot

01 Oct 2022, 13:16

Is positive integer n divisible by 3 ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

silver870

16 Oct 2019, 05:49

48

7

18,913

by: agrasan

16 Jul 2025, 21:03

ER

If k is a positive integer, what is the hundreds digit of k?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

sillyboy

29 Jan 2017, 23:50

1

5

2,345

by: bumpbot

06 Apr 2024, 04:02

ER

Is st = t ? (1) s = st (2) t = ts

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

sidmaken

07 Jun 2014, 13:04

117

13

36,078

by: bumpbot

19 Jan 2024, 03:13

ER

What is the area of the quadrilateral with vertices A, B, C, and D?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

sidjain93

17 Aug 2019, 14:28

1

1,653

by: eakabuah

17 Aug 2019, 15:47

ER

If the sum of five integers is 875, what is the product of these

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

sidinsin

23 Oct 2023, 04:25

6

4

5,794

by: pierjoejoe

07 Oct 2024, 02:31

ER

In the quadrilateral ABCD, side AD is parallel to side BC.

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

siddharthvaid

07 Sep 2013, 09:19

39

11

37,062

by: bumpbot

22 Jul 2023, 14:49

ER

The ration r/s is expressed as a decimal. Is r/s, a terminating decima

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

siddharthsinha123

19 Jan 2017, 02:01

47

11

11,846

by: bumpbot

07 Sep 2024, 10:30

ER

A box has 10 balls, either red or blue. If two balls are to be drawn s

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

siddharthkapoor

05 Sep 2020, 22:24

13

6

4,643

by: Bunuel

14 Apr 2026, 03:20

ER

The petrol tank of a car started to leak. Did the tank get empty in mo

705-805 (Hard) | Work and Rate Problems

705-805 (Hard) | Work and Rate Problems hide tags

siddharthkapoor

02 Nov 2020, 05:04

14

6

3,926

by: Bunuel

02 Jan 2026, 05:34

ER

If the average (arithmetic mean) of w, p, q, and t is m, is the standa

655-705 (Hard) | Statistics and Sets Problems

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

siddharthkapoor

01 Oct 2020, 20:43

11

4

2,820

by: bumpbot

02 Oct 2025, 08:27

If 2-digit positive integer n is 4 times the sumof the units digit of

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

siddharthkapoor

06 Oct 2020, 19:57

5

3

1,797

by: samarpan.g28

06 Apr 2025, 11:16

ER

If t is a positive integer, can t2 + 1 be completely divided by 10? (

805+ (Hard) | Multiples and Factors, Remainders

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

siddharthkapoor

13 Oct 2019, 22:22

10

3

3,218

by: bumpbot

06 Sep 2024, 22:14

ER

If t is a positive integer, can (t+2)(t-3) be completely divided by 6?

805+ (Hard) | Multiples and Factors, Remainders

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

siddharthkapoor

13 Oct 2019, 22:16

23

4

3,551

by: bumpbot

23 Aug 2023, 10:49

ER

If a^2 and b^2 are integers and (a^4 – a^2 + 4b^2 – 6)^(1/2) =

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

siddharthkapoor

28 Oct 2019, 22:58

13

5

2,185

by: bumpbot

03 Aug 2023, 07:57

ER

Z = 231.abc What is the result when Z is rounded to the nearest integ

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

siddharthkapoor

11 Oct 2019, 11:19

14

7

3,552

by: JeffTargetTestPrep

30 Jul 2023, 16:44

ER

If x is a non−zero number, is x <|x|^x?

705-805 (Hard) | Absolute Values +2 tags

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

siddharthkapoor

11 Oct 2019, 01:15

10

3

3,270

by: Oppenheimer1945

30 Jul 2023, 03:06

ER

For a positive integer n, is n divisible by 6? (1) n = m3 - m, for any

555-605 (Medium) | Multiples and Factors

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

siddharthkapoor

13 Jul 2020, 01:05

9

7

3,998

by: bumpbot

31 Mar 2022, 10:25