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

179

15

79,142

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,767

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

488,359

by: bb

29 Aug 2025, 13:27

ER

Does integer n have a factor f such that 1 < f < n?

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

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

MVA

29 Apr 2020, 02:06

7

4

1,713

by: bumpbot

07 Feb 2025, 10:16

ER

If m, n, , and q are positive integers, and m = nq, what is

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

banksy

10 Feb 2011, 16:04

5

3

6,125

by: Bunuel

08 Feb 2025, 01:47

ER

Is the surface area of a rectangular carpet larger than 1000 square fe

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

04 Nov 2019, 00:52

23

18

6,570

by: bumpbot

08 Feb 2025, 14:27

ER

If z is a positive integer and r is the remainder when z^2 + 2z + 4 is

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

Bunuel

31 Aug 2017, 23:14

98

15

8,831

by: ManifestDreamMBA

10 Feb 2025, 06:58

ER

In the list of numbers {a, b, c}, a is the average (arithmetic mean)

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

23 Mar 2020, 06:40

13

8

3,229

by: bumpbot

10 Feb 2025, 10:43

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When the wind speed is 9 miles per hour, the wind-chill factor w is

505-555 (Easy) | Functions and Custom Characters, Word Problems

505-555 (Easy) | Functions and Custom Characters, Word Problems hide tags

nalinnair

23 May 2016, 03:35

101

11

25,791

by: bumpbot

11 Feb 2025, 14:37

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When a positive integer n is divided by 7, what is the remainder?

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

MathRevolution

28 Sep 2016, 04:00

30

5

15,669

by: bumpbot

12 Feb 2025, 07:50

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If a^(1/2)=b, what is the value of integer b?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

chetan2u

11 Oct 2019, 19:26

24

6

4,813

by: bumpbot

12 Feb 2025, 09:34

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If a, b, and c are three consecutive integers (in the order given), wh

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

AkshdeepS

05 Apr 2019, 00:47

9

6

3,502

by: bumpbot

12 Feb 2025, 20:29

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If perpendicular lines m and n intersect at (0,b) in the

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

nave

20 Oct 2013, 04:56

331

9

60,712

by: bumpbot

13 Feb 2025, 03:34

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The ratio of males to females in a particular school is 4:5. How many

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

Bunuel

18 Mar 2015, 05:16

26

9

13,324

by: bumpbot

13 Feb 2025, 06:47

ER

What is the hundredths digit of the decimal m ?

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

tatane90

21 Sep 2010, 13:49

82

13

16,084

by: GMATinsight

13 Feb 2025, 08:53

ER

Out of a stock of 10 microphones, an electronics store sold more than

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

MT1302

20 Mar 2024, 08:25

12

10

4,341

by: nishantswaft

13 Feb 2025, 19:26

ER

Dealership A and Dealership B both sell cars and trucks. If the ratio

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

09 Jan 2020, 01:40

34

8

9,222

by: bumpbot

14 Feb 2025, 11:40

ER

What is the value of x?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

BrentGMATPrepNow

29 Aug 2022, 07:57

4

3

1,835

by: bumpbot

16 Feb 2025, 16:02

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

7,227

by: anirchat

17 Feb 2025, 00:40

ER

If a and b are positive integers, is a^4-b^4 divisible by 4?

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

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

BillyZ

23 Mar 2017, 00:23

85

17

12,162

by: anirchat

19 Feb 2025, 11:49

ER

If n ≠ k, k ≠ 0, n ≠ -2, and n and k are integers, is 1/(n−k)>0?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

25 Apr 2016, 04:02

10

4

5,517

by: bumpbot

22 Feb 2025, 12:52

ER

Is w an integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

19 May 2016, 03:30

23

8

13,516

by: bumpbot

22 Feb 2025, 22:43

ER

Assume that all positive integers are colored either red or blue. If a

655-705 (Hard) | Algebra +2 tags

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

BillyZ

22 Feb 2017, 22:58

60

4

7,164

by: bumpbot

23 Feb 2025, 04:59

ER

Is k the square of an integer?

555-605 (Medium) | Algebra, Number Properties

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

jsphcal

05 Sep 2017, 01:08

63

8

13,125

by: bumpbot

25 Feb 2025, 09:44

ER

If ab > 0, does (a - 2)(b - 2) = 4 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

WoundedTiger

15 Aug 2013, 02:22

11

6

5,007

by: bumpbot

25 Feb 2025, 14:01

ER

A number can be considered “purple” if it halfway between two perfect

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

09 Apr 2018, 01:57

28

16

7,452

by: bumpbot

25 Feb 2025, 22:07

ER

What is the standard deviation of 3 products’ prices?

555-605 (Medium) | Statistics and Sets Problems

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

MathRevolution

18 Nov 2016, 01:24

15

5

5,214

by: bumpbot

27 Feb 2025, 08:37

ER

Is y - x > 1/(x - y) ? (1) |x - y┃ > 1 (2) y > x

655-705 (Hard) | Absolute Values, Inequalities

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

shashankp27

05 Sep 2011, 20:48

20

17

7,330

by: bumpbot

01 Mar 2025, 04:24

ER

If n and p are integers, is p > 0?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

gvogelei

26 Apr 2006, 07:43

52

12

22,389

by: bumpbot

02 Mar 2025, 01:12

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

4,790

by: bumpbot

02 Mar 2025, 04:17

ER

If x and y are unknown positive integers, is the mean of the list {6,

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

17 Jan 2020, 02:45

28

8

12,958

by: bumpbot

02 Mar 2025, 19:25

ER

The regular price for canned tomato sauce was reduced during a sale.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

25 Feb 2025, 01:30

6

5

780

by: KarishmaB

03 Mar 2025, 02:21

ER

Is rst 1? (1) rs + rt = 5 (2) r + st = 2

805+ (Hard) | Algebra, Inequalities

805+ (Hard) | Algebra, Inequalities hide tags

gmatpapa

30 Dec 2010, 06:23

28

6

7,564

by: bumpbot

03 Mar 2025, 08:24

ER

What is the value of the integer k?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

msand

27 Dec 2009, 15:02

35

10

19,417

by: bumpbot

03 Mar 2025, 08:52

ER

What is the remainder when N is divided by 8? (1) N is a product of

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

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

nkmungila

17 Oct 2017, 05:33

10

4

3,738

by: bumpbot

04 Mar 2025, 03:34

ER

If k=x/5^az^by^c, and k is expressed as a decimal, will that decimal t

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

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

Bunuel

30 Apr 2016, 03:42

9

8

3,606

by: Emily1122

05 Mar 2025, 23:27

ER

If x is an integer and x not = 0, is x^4 < 90? 1) x^{ 4

705-805 (Hard) | Exponents +2 tags

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

narisipalli

11 Jun 2010, 22:14

28

3

6,486

by: bumpbot

06 Mar 2025, 22:58

ER

If 25% of the employees at a firm did not take a vacation last year

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

EgmatQuantExpert

08 Mar 2025, 02:11

53

12

12,321

by: Wazzzaa

08 Mar 2025, 01:51

ER

If n is a positive integer what is the remainder when n(2n - 2)(n + 1)

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

Bunuel

19 Jan 2023, 11:15

7

3

1,958

by: bumpbot

08 Mar 2025, 02:52

ER

If a, b, and c are positive integers, is b between a and c?

505-555 (Easy) | Arithmetic, Inequalities

505-555 (Easy) | Arithmetic, Inequalities hide tags

jmehrabi

29 Jan 2012, 16:41

56

9

19,102

by: bumpbot

09 Mar 2025, 01:48

ER

If |n + 5| = 5, what is the value of n?

505-555 (Easy) | Absolute Values, Algebra

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

anandhimanshu85

12 Jul 2013, 02:05

61

8

26,105

by: bumpbot

09 Mar 2025, 05:37

ER

At a sale all books were priced equally and all magazines were priced

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

10 Sep 2017, 22:37

6

7

8,182

by: bumpbot

10 Mar 2025, 02:36

ER

If x and y are greater than 0, is x = 1 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

PhillyBound

13 Aug 2011, 17:09

146

10

43,263

by: bumpbot

10 Mar 2025, 03:59

ER

Data Sufficiency Pack 2, Question 3) Four raffle 'winners'...

605-655 (Medium) | Arithmetic, Word Problems

605-655 (Medium) | Arithmetic, Word Problems hide tags

EMPOWERgmatRichC

01 Nov 2015, 17:36

10

6

4,521

by: bumpbot

10 Mar 2025, 06:54

ER

Is integer N odd? (1) N is a factor of 100. (2) N is a factor of 135

505-555 (Easy) | Multiples and Factors, Number Properties

505-555 (Easy) | Multiples and Factors, Number Properties hide tags

Bunuel

05 Apr 2023, 01:30

5

2,751

by: Bunuel

10 Mar 2025, 08:22

ER

The figure above shows the dimensions of a square picture frame that

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

15 Dec 2014, 09:00

101

15

18,544

by: bumpbot

12 Mar 2025, 19:20

ER

Is k^2 odd?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

ruturaj

21 Aug 2013, 07:13

21

13

11,497

by: bumpbot

13 Mar 2025, 09:47

ER

Of the 200 numbers, 76% are less than or equal to 80. Is the median nu

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

15 Oct 2021, 01:30

10

3

2,720

by: bumpbot

13 Mar 2025, 15:23

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

23,778

by: bumpbot

13 Mar 2025, 19:11

ER

Is x = y? (1) x^2 = xy (2) x^2 = y^2

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

nusmavrik

02 Aug 2010, 10:49

40

9

12,690

by: bumpbot

14 Mar 2025, 03:15

ER

If set S = {7, y, 12, 8, x, 9}, is x + y less than 18?

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

14 Oct 2014, 06:11

26

7

9,683

by: bumpbot

14 Mar 2025, 10:06

ER

How many miles long is the route from Houghton to Callahan?

555-605 (Medium) | Distance and Speed Problems

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

fiendex

21 Jul 2013, 09:08

82

12

27,873

by: bumpbot

14 Mar 2025, 10:59

ER

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

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

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

sh00nya

21 Nov 2013, 02:52

61

7

12,816

by: bumpbot

17 Mar 2025, 07:53