GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

176

15

78,611

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

188,455

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

487,828

by: bb

29 Aug 2025, 13:27

ER

Is (x-y)*(x+y) an even integer? (1) x and y are integers (2)

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

ritula

20 Nov 2008, 08:31

6

4

4,260

by: kratos0906

13 Apr 2023, 08:23

ER

Seven integers, x1, x2, x3, x4, x5, x6, and x7, are picked at random f

605-655 (Medium) | Remainders, Statistics and Sets Problems

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

Mspixel

04 Dec 2008, 13:31

139

15

35,669

by: bumpbot

21 Jan 2026, 07:01

ER

If a, b, and c are integers, what is the value of a?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

snowbirdskier

13 Oct 2014, 03:18

178

14

45,569

by: bumpbot

28 Dec 2024, 03:11

ER

The function f(n) = the number of factors of n. If p and q

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

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

selvae

16 May 2014, 05:24

73

16

23,412

by: bumpbot

30 Dec 2024, 19:36

ER

If the terms of a sequence are t1, t2, t3, ..., tn, what is the value

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

bigsteel79

20 May 2018, 13:25

164

16

79,080

by: bumpbot

03 Feb 2026, 07:45

ER

Is |x| > |y| ? (1) x^2 > y^2 (2) x > y

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

xALIx

08 May 2022, 02:27

16

10

8,238

by: bumpbot

25 Apr 2024, 18:11

ER

If x and y are positive integers, is the product xy even ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

krishan

29 Jan 2009, 05:47

131

12

45,199

by: bumpbot

24 Sep 2024, 11:59

A certain military vehicle can run on pure Fuel X, pure Fuel Y, or any

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

shobuj40

23 Jul 2015, 10:38

105

7

14,595

by: bumpbot

03 Apr 2025, 12:46

ER

When positive integer p is divided by 7 the remainder is 2.

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

xALIx

05 Jun 2014, 01:17

50

16

21,275

by: bumpbot

07 Feb 2025, 08:17

ER

If vmt ≠ 0, is (v^2)*(m^3)*(t^(-4)) > 0?

555-605 (Medium) | Exponents, Inequalities

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

LoyalWater

17 Nov 2017, 03:21

39

6

20,610

by: bumpbot

31 Mar 2025, 23:11

ER

Of the 800 sweaters in a certain store, 150 are red. How

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

jairus

14 Jun 2023, 16:40

129

17

49,759

by: bumpbot

19 Aug 2025, 21:42

ER

Is x greater than x^3 ?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

lumone

20 Apr 2014, 12:26

9

10

5,924

by: bumpbot

03 Dec 2021, 11:19

ER

Is m + z > 0 (1) m - 3z > 0 (2) 4z - m > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

1, 2

kman

26 Apr 2018, 02:47

659

29

125,127

by: SomeOneUnique

01 Nov 2024, 18:30

ER

What is the value of x/(yz) ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

financeguy25

21 Sep 2019, 17:14

36

12

22,056

by: totaltestprepNick

28 Feb 2026, 09:16

ER

If x is a positive integer, what is the least common multiple of x, 6

555-605 (Medium) | Multiples and Factors

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

mrsmarthi

09 Mar 2009, 21:12

273

17

54,879

by: totaltestprepNick

23 Feb 2026, 13:00

ER

When positive integer n is divided by 3, the remainder is 2; and when

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

1, 2

priyankurml

08 Sep 2023, 08:00

337

20

81,201

by: rak08

28 May 2025, 03:54

ER

If x^3y^4 = 5,000, is y = 5? (1) y is a positive integer.

705-805 (Hard) | Algebra +2 tags

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

Economist

08 Sep 2023, 08:02

97

11

29,215

by: bumpbot

30 May 2023, 04:11

ER

When 200 gallons of oil were removed from a tank, the volume of oil

505-555 (Easy) | Fractions and Ratios, Word Problems

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

milind1979

25 Mar 2009, 23:05

105

10

31,591

by: bumpbot

05 Apr 2026, 20:22

ER

Of the students in a certain class, 55% of the female and 35% of the

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

nitya34

29 Mar 2009, 10:59

26

14

12,173

by: bumpbot

27 Sep 2025, 09:49

ER

Stations X and Y are connected by two separate, straight, parallel

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

1, 2

tenaman10

29 Mar 2009, 20:09

559

21

68,923

by: mbasimp

03 Apr 2025, 01:43

ER

At the bakery, Lew spent a total of $6.00 for one kind of

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

pmal04

27 Jul 2015, 14:51

92

12

23,757

by: bumpbot

24 May 2025, 21:27

ER

Mary persuaded n friends to donate $500 each to her election

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

1, 2

seofah

07 Apr 2009, 15:51

324

20

55,438

by: bumpbot

20 Sep 2025, 08:10

ER

If b is the product of three consecutive positive integers c

555-605 (Medium) | Multiples and Factors

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

milind1979

18 Apr 2009, 20:43

54

15

21,315

by: bumpbot

09 Jun 2025, 20:13

ER

What is the tenths digit in the decimal representation of a

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

Bunuel

19 Apr 2009, 21:15

35

11

29,808

by: totaltestprepNick

24 Feb 2026, 13:17

ER

Is x^2 - y^2 an integer divisible by 8?

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

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

icandy

09 May 2009, 11:25

83

5

23,748

by: bumpbot

29 Mar 2023, 12:47

ER

Lists S and T consist of the same number of positive integers. Is the

605-655 (Medium) | Statistics and Sets Problems

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

vaivish1723

22 May 2021, 13:27

111

19

23,301

by: Bunuel

17 May 2025, 11:40

ER

If n is a positive integer is n equal to 100?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

reply2spg

27 May 2016, 07:34

4

7

5,462

by: bumpbot

08 Jan 2022, 13:30

ER

What is the remainder when the positive integer n is divided

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

reply2spg

10 May 2009, 21:09

109

11

31,698

by: bumpbot

07 Feb 2025, 08:08

ER

If m and n are both positive, what is the value of m*root(n)

555-605 (Medium) | Number Properties, Roots

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

gb82

16 May 2009, 12:26

50

14

15,703

by: bumpbot

31 Oct 2025, 18:42

ER

Is pq = 1? (1) pqp = p (2) qpq = q

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

DFG5150

01 Oct 2013, 03:21

77

16

28,429

by: Bunuel

29 Apr 2025, 10:07

ER

If a, b and c are integers such that b > a, is b+c > a

805+ (Hard) | Geometry, Inequalities

805+ (Hard) | Geometry, Inequalities hide tags

sondenso

10 Aug 2012, 00:22

112

16

40,204

by: bumpbot

07 Oct 2022, 20:29

ER

Is product 2*x*5*y an even integer? 1.2 + x + 5 + y is an

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

1, 2

prinits

29 May 2009, 04:53

104

20

13,979

by: bumpbot

31 May 2023, 13:50

ER

If n is an integer, what is the remainder when n is divided

Poor Quality

Poor Quality hide tags

vcbabu

12 Oct 2013, 09:19

19

5

14,398

by: IanStewart

21 Jun 2009, 10:40

ER

If the average (arithmetic mean) of the assessed values of x houses is

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

sondenso

20 Nov 2023, 09:37

80

11

26,993

by: GMAT1034

22 Jul 2025, 09:13

ER

In the rectangular coordinate system, are the points (a,

805+ (Hard) | Absolute Values, Coordinate Plane

805+ (Hard) | Absolute Values, Coordinate Plane hide tags

1, 2

mbaMission

28 Apr 2015, 04:31

407

32

41,155

by: bumpbot

15 Nov 2025, 13:08

ER

Is the positive integer N a perfect square? (1) The number

655-705 (Hard) | Exponents +2 tags

655-705 (Hard) | Exponents, Multiples and Factors, Number Properties hide tags

1, 2

mbaMission

30 Jul 2012, 04:36

496

28

68,927

by: bumpbot

11 Sep 2025, 08:56

ER

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

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

1, 2

vcbabu

23 May 2021, 12:18

554

25

106,527

by: bumpbot

01 Feb 2025, 01:32

ER

If vertices of a triangle are A (5, 0), B (x, y) and C (25, 0), what

555-605 (Medium) | Coordinate Plane, Geometry

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

bb

11 Oct 2021, 03:50

45

7

16,050

by: bumpbot

26 Aug 2025, 23:56

ER

What is the greatest common divisor of positive integers m and n ?

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

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

1, 2

lahoosaher

06 Jun 2019, 08:23

412

20

91,536

by: totaltestprepNick

11 Mar 2026, 10:09

ER

Beth and Jim each received a salary increase. If Jim's salary was inc

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

I3igDmsu

07 Jun 2009, 19:43

10

8

9,991

by: bumpbot

08 Feb 2023, 03:50

ER

If the units digit of integer n is greater than 2, what is

505-555 (Easy) | Fractions and Ratios

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

Bunuel

12 Jun 2009, 21:25

77

17

43,403

by: bumpbot

08 Oct 2025, 01:44

ER

Are two triangles congruent? (I) They are both equilateral

Poor Quality

Poor Quality hide tags

Hussain15

28 Jun 2009, 05:04

5

3

8,203

by: IanStewart

18 Feb 2011, 12:50

ER

If the area of a parallelogram is 100, what is the perimeter

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

1, 2

I3igDmsu

29 Jun 2009, 19:20

109

25

35,036

by: bumpbot

26 Oct 2023, 09:34

ER

What is the remainder when x^4 + y^4 divided by 5?

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

1, 2

mdfrahim

04 Jul 2009, 23:08

36

24

13,309

by: bumpbot

18 Dec 2021, 20:00

ER

In which quadrant of the coordinate plane does the point

705-805 (Hard) | Absolute Values, Coordinate Plane

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

Wengen

18 Jun 2012, 01:14

5

4

5,718

by: Bunuel

18 Jun 2012, 01:14

ER

The participants in a race consisted of 3 teams with 3 runners on each

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

vannu

19 Jul 2019, 00:33

150

12

23,721

by: bumpbot

13 Mar 2025, 19:11

ER

What is the maximum number of rectangular blocks, each with

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

sondenso

25 Mar 2012, 03:26

44

15

29,006

by: bumpbot

14 Nov 2023, 05:19

ER

If x, y and z are positive integers, is x% of y bigger than

555-605 (Medium) | Percent and Interest Problems

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

vaivish1723

20 Jul 2009, 10:24

24

6

13,424

by: bumpbot

28 Mar 2025, 11:19

ER

Of the 4,800 voters who voted for or against Resolution K

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

seofah

15 Jan 2012, 13:44

64

9

25,974

by: bumpbot

12 Jul 2025, 17:45

ER

In the figure above, three segments are drawn to connect

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

coelholds

29 Jul 2015, 03:15

61

18

12,751

by: JDLaw

20 Oct 2022, 03:02