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

78,674

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

188,494

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

487,888

by: bb

29 Aug 2025, 13:27

ER

Of the numbers r + s, r - s, r*s, and r/s, which is greatest?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Jeoren

15 Nov 2016, 13:47

155

7

37,123

by: bumpbot

06 Jan 2025, 09:31

ER

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

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

jennysussna

10 Sep 2018, 18:53

6

9

4,837

by: minustark

03 May 2020, 14:26

ER

A rectangle is plotted on the standard coordinate plane,

605-655 (Medium) | Coordinate Plane, Geometry

605-655 (Medium) | Coordinate Plane, Geometry hide tags

JenniferClopton

03 Dec 2010, 11:19

19

15

6,870

by: bumpbot

06 May 2023, 00:45

ER

If # represents +, -, *, or /, then does (a+b)#c = (a#c) + (b#c) for a

605-655 (Medium) | Functions and Custom Characters

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

JenniferClopton

30 Nov 2010, 07:55

9

12

5,114

by: bumpbot

22 Dec 2016, 06:37

ER

Nate has one credit card and no outstanding loans. For an $8,000

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

jenneyennej

20 Nov 2025, 05:06

26

13

2,538

by: msing454

05 Jan 2026, 04:05

ER

Is 0< a/b < 1?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

jenl2881

13 Nov 2013, 16:17

17

8

7,811

by: bumpbot

12 Jul 2023, 11:05

ER

If k is a positive integer and n = k(k + 7), is n divisible by 6?

605-655 (Medium) | Multiples and Factors, Remainders

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

1, 2

Jem2905

06 Jun 2022, 01:16

340

21

64,763

by: bumpbot

24 Apr 2025, 04:39

ER

If a^n ≠ 0 and n is a positive integer, is n odd?

705-805 (Hard) | Exponents

705-805 (Hard) | Exponents hide tags

jellybean23

20 Oct 2013, 04:43

17

4

4,979

by: bumpbot

13 Apr 2024, 13:01

ER

Is y < 2x ? (1) y/4 < x/2 (2) (y - 2x)/3 <0

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Jeli13

18 Jul 2019, 01:58

38

5

24,654

by: bumpbot

03 Dec 2023, 09:53

ER

If |x - y| = 8, what is the value of x + y?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

jefferyk

22 Jul 2020, 23:17

6

4

2,733

by: bumpbot

29 Apr 2023, 01:57

ER

In triangle ABC above, is AC greater than 4?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

jefferyk

22 Jul 2020, 23:24

13

4

3,531

by: bumpbot

08 Feb 2023, 12:13

ER

Set T consists of a certain number of even integers divisible by 3. Is

555-605 (Medium) | Statistics and Sets Problems

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

jeetparicha85

30 Mar 2022, 04:01

14

5

8,232

by: bumpbot

18 Oct 2023, 09:20

ER

If x, y, and z are integers greater than 1, and

805+ (Hard) | Exponents, Number Properties

805+ (Hard) | Exponents, Number Properties hide tags

jeeteshsingh

08 Oct 2012, 04:18

204

5

51,138

by: SatvikVedala

31 Aug 2024, 00:12

ER

Is integer x prime?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

jeeteshsingh

07 Jan 2014, 07:13

7

11

4,761

by: bumpbot

08 Apr 2022, 02:00

ER

If p/q > 5, is q < 2?

Poor Quality

Poor Quality hide tags

jeeteshsingh

15 Oct 2013, 09:04

6

31,167

by: Bunuel

15 Oct 2013, 09:14

ER

Is (a^2 + b^2)^1/2 an integer

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

jedit

05 Jul 2017, 00:14

4

2

2,161

by: jedit

05 Jul 2017, 00:00

In 1997 there were 300 female employees at Company C. If the

505-555 (Easy) | Percent and Interest Problems

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

Jcpenny

20 Nov 2023, 08:29

47

10

23,646

by: bumpbot

17 Jun 2025, 23:42

ER

There were 2 apples and 5 bananas in a basket. After

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Jcpenny

08 Nov 2008, 18:15

115

17

48,553

by: Bunuel

03 Dec 2023, 06:52

ER

For a week Raymond is paid at the rate of x dollars per hour

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Jcpenny

31 Dec 2014, 04:30

17

8

14,392

by: bumpbot

23 Apr 2023, 11:50

ER

If n is an integer, is n positive? (1) (2n + 1)/(n + 1) is an integer

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

jcmsolis2015

10 Jul 2021, 02:58

119

11

15,218

by: bumpbot

24 Dec 2024, 00:51

ER

If r, s, and t are all positive integers, what is the

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

jcmorales2012

02 Aug 2012, 16:10

113

15

33,629

by: ManifestDreamMBA

23 Apr 2025, 10:58

ER

Reserve tank 1 is capable of holding z gallons of water. Water is pump

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

JCLEONES

05 Apr 2018, 05:42

186

11

31,881

by: vishnubansal1812

23 Mar 2026, 10:36

ER

In a class, every student is either American or European

705-805 (Hard) | Overlapping Sets, Probability

705-805 (Hard) | Overlapping Sets, Probability hide tags

jcaguirre91

15 Oct 2021, 19:16

75

10

10,223

by: Bunuel

16 Apr 2025, 15:57

ER

The product of the GCF and LCM of integers p and q is rs. What is the

Sub 505 (Easy) | Multiples and Factors, Number Properties

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

Jazzmin

25 Oct 2018, 13:05

4

2,660

by: bumpbot

17 Jul 2024, 07:15

ER

If n is a positive integer, what is the smallest positive integer that

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

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

Jazzmin

31 Oct 2018, 04:27

12

9

5,676

by: bumpbot

31 May 2024, 16:32

ER

If r and s are non negative integers, p = 1.9*10^r and q = 1.9*10^s

655-705 (Hard) | Roots

655-705 (Hard) | Roots hide tags

Jazzmin

04 Nov 2018, 09:33

13

3

3,665

by: bumpbot

15 Dec 2023, 19:21

If x and y are positive integers and y<5x, the remainder is z when 5x

705-805 (Hard) | Multiples and Factors +2 tags

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

Jazzmin

25 Oct 2018, 19:18

10

6

4,393

by: Ekland

21 Apr 2021, 13:00

What is the units digit of (16^8)(44^x)(37^5)?

555-605 (Medium) | Exponents, Number Properties

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

Jazzmin

25 Oct 2018, 12:51

3

5

2,056

by: ashwink

16 Apr 2019, 19:53

ER

Find the 8th term of the sequence

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

JayPatadiya

04 Aug 2019, 07:39

5

2

2,132

by: Mehta17

04 Oct 2025, 20:37

ER

A, B, C and D are in Arithmetic Progression, what is the num

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

JayPatadiya

04 Aug 2019, 07:36

4

2,734

by: bumpbot

29 May 2021, 06:39

In how many years will Rs. 400 double itself?

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

JayPatadiya

04 Aug 2019, 07:26

7

3

1,873

by: JayPatadiya

27 Sep 2019, 12:30

Is one of P or Q a fraction?

Poor Quality

Poor Quality hide tags

JayPatadiya

15 Jul 2019, 01:14

1

5

1,080

by: Palladin

17 Jul 2019, 00:51

ER

Is x/18 an integer? (1) x/6 is an integer. (2) x/3 is an integer.

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

JayPatadiya

14 Jul 2019, 23:40

1

3

1,639

by: JayPatadiya

15 Jul 2019, 00:21

ER

Is a/b > c? (1) a> bc (2) b > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

JayPatadiya

07 Jul 2019, 07:50

1

4

1,908

by: JayPatadiya

07 Jul 2019, 23:15

ER

Is x positive? (1) 1/(x + 1) < 1 (2) (x - 1) is a perfect square.

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

jayoptimist

28 Jul 2012, 19:39

76

10

20,406

by: bumpbot

20 Oct 2024, 02:24

ER

Is x > y? (1) x/4 = y^2 (2) x > 1

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

jayoptimist

29 Jul 2012, 11:21

62

7

11,410

by: bumpbot

03 Oct 2024, 14:27

ER

Is x < 0 ? (1) -4x < 0 (2) -4x^2 < 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

jayoptimist

03 Jul 2012, 23:30

3

4

4,213

by: bumpbot

19 Jan 2018, 10:52

What is the value of X

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Poor Quality hide tags

jayoptimist

04 Jul 2012, 09:23

3

2,557

by: cyberjadugar

04 Jul 2012, 10:42

ER

What fractional part of the total surface area of cube C is

555-605 (Medium) | Fractions and Ratios, Geometry

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

jaynayak

20 Jun 2013, 05:49

121

5

28,643

by: bumpbot

10 Sep 2025, 07:04

ER

If x^2 + y^2 = 29, what is the value of (x - y)^2 ? (1) xy = 10 (2) x

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Jayanth2689

19 Sep 2010, 06:48

152

9

81,216

by: totaltestprepNick

01 Mar 2026, 14:11

ER

For positive integers x and y, x^2 = 350y. Is y divisible

705-805 (Hard) | Multiples and Factors

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

jayaddula

09 May 2012, 16:25

41

11

9,191

by: bumpbot

12 Apr 2024, 10:02

ER

Of the students at a certain school, 40 took French, 30 took Latin, an

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

jawnjon

25 Mar 2024, 18:09

76

9

14,651

by: NEYR0N

12 Apr 2025, 12:06

ER

If x and y are negative, is (x/y)<1?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

JavierS

24 Nov 2016, 10:54

1

4

1,884

by: Bunuel

24 Nov 2016, 02:01

ER

In the figure above, QRS is a straight line and line TR bisects PRS

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Jasontuyj2012

08 Dec 2018, 20:42

18

3

10,223

by: GMATBusters

08 Dec 2018, 20:43

ER

If (y + 3)(y - 1) - (y - 2)(y - 1) = r(y - 1), what is the value of y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Jasonammex

01 Sep 2020, 05:31

30

12

15,409

by: bumpbot

22 Apr 2025, 04:21

ER

What is the total value of Company H's stock?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Jasonammex

24 Aug 2011, 00:48

10

9

18,747

by: bumpbot

13 May 2024, 13:18

ER

If S is a set of ten consecutive integers, is the integer 5

555-605 (Medium) | Statistics and Sets Problems

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

Jasonammex

24 Aug 2011, 01:47

2

1

5,530

by: Bunuel

19 Feb 2012, 04:38

ER

What is the value of integer x?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

1, 2

jashshah

28 Feb 2015, 07:08

93

25

21,141

by: bumpbot

20 Sep 2025, 01:38

Am I 32 years old? (1) I am either 29 or 37 years old (2) I am over 35

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Jarinmeh

31 Aug 2024, 02:10

2

786

by: Jarinmeh

30 Aug 2024, 12:50

ER

If w, x, y and z are integers such that w/x and y/z are integers, is

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

japped187

21 Oct 2019, 10:24

300

16

48,051

by: bumpbot

26 Apr 2025, 01:43