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

79,237

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,839

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

488,464

by: bb

29 Aug 2025, 13:27

ER

If ab > 0, is a^3b^2 > 0? (1) a > 0 (2) b > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

30 Dec 2022, 13:40

1

1,331

by: gmatophobia

30 Dec 2022, 22:43

ER

If ab > 0, is a^2b^3 > 0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

14 Mar 2023, 11:00

1

775

by: gmatophobia

14 Mar 2023, 13:53

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

5,008

by: bumpbot

25 Feb 2025, 14:01

ER

If ab - 2b = (4 - a)b, what is the value of b? (1) |a^2 - 9| ≤ 0 (2)

805+ (Hard) | Absolute Values +2 tags

805+ (Hard) | Absolute Values, Algebra, Inequalities hide tags

Bunuel

03 Jul 2020, 01:59

29

15

7,340

by: bumpbot

10 Aug 2022, 11:57

ER

If Aaron, Lee, and Tony have a total of $36, how much money

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

18 Feb 2014, 03:41

15

6

13,855

by: totaltestprepNick

25 Feb 2026, 16:17

ER

If Aaliyah eats at a constant rate, will Aaliyah have enough time to

655-705 (Hard) | Work and Rate Problems

655-705 (Hard) | Work and Rate Problems hide tags

Bunuel

08 Oct 2025, 00:26

8

3

1,120

by: haianh

20 Nov 2025, 03:17

ER

If a1, a2, a3, ..., an, ... is a sequence such that an = 2n

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

eybrj2

28 Mar 2012, 01:57

46

9

22,182

by: Bunuel

26 Aug 2025, 10:11

ER

If a0, how many solutions does the equation a(x + b)^2 + c = 0 have?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

04 Jan 2024, 02:30

4

2

1,330

by: Aryaa03

05 Jan 2024, 03:13

ER

If a=12+12+12+…, and b=13-13-13-…, what is a2+2a+b2-3b?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

MathRevolution

13 May 2020, 03:34

6

3

1,926

by: NiftyNiffler

15 May 2020, 07:44

ER

If a≠-b, √[(a+2b)/(a+b)]=?

555-605 (Medium) | Fractions and Ratios

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

MathRevolution

18 Oct 2016, 00:53

1

2

2,321

by: MathRevolution

19 Oct 2016, 23:34

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If a+b=200 and a<b , is a+b>c+d ? (1) c+d<200 (2)

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

kostyan5

08 Nov 2011, 19:49

37

5

14,146

by: bumpbot

16 Nov 2023, 11:37

ER

If a+b+c=62, what is the value of a?

705-805 (Hard) | Algebra, Arithmetic

705-805 (Hard) | Algebra, Arithmetic hide tags

chetan2u

29 Dec 2015, 01:44

10

6

3,741

by: ScottTargetTestPrep

30 Jul 2017, 17:25

ER

If a+b>m, what is the value of positive integer m?

705-805 (Hard) | Exponents, Inequalities

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

immarenbe

17 Apr 2022, 23:57

3

4

1,103

by: KarishmaB

17 Apr 2022, 23:46

ER

If a#b, what is the value of a+b?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

ashiima

08 May 2015, 09:23

2

3,471

by: bumpbot

13 Jun 2024, 20:39

ER

If a#-b, is (a-b)/(b+a) > 1?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

tkarthi4u

03 Oct 2009, 21:51

20

7

8,166

by: bumpbot

11 Aug 2022, 23:57

ER

If a<b<0 are integers, what is the value of a^3-b^3?

705-805 (Hard) | Inequalities, Multiples and Factors

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

fskilnik

03 Mar 2019, 17:21

5

3

1,154

by: fskilnik

04 Mar 2019, 05:21

ER

If a>b>c>d and a,b,c and d are integers, what is the probability that

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

chetan2u

01 Jan 2018, 09:03

6

13

2,352

by: bumpbot

19 Jan 2026, 03:09

ER

If a>b>0

Poor Quality

Poor Quality hide tags

rheabiswal

01 Oct 2018, 21:38

1

6

1,853

by: rheabiswal

02 Oct 2018, 07:05

ER

If a>b, is a>c? 1) a/b > c/b 2) 5ab > 6bc

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

EBITDA

25 May 2016, 07:47

5

4

2,337

by: mvictor

18 Oct 2016, 07:59

ER

If a/b = c/d, what is the numerical ratio of b to d?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

23 Mar 2020, 04:25

1

2,928

by: Kinshook

23 Mar 2020, 04:35

ER

If a/b = c, what is the value of ac? (1) b^2/a = 6 (2) a/b = 4

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

25 May 2018, 01:21

3

1,531

by: alldaytestprep

15 Jun 2018, 15:27

ER

if a/b = 3/5then find the value of b? 1) a+b = 64 2) Unit digit ofa^b

505-555 (Easy) | Exponents +2 tags

505-555 (Easy) | Exponents, Fractions and Ratios, Number Properties hide tags

GMATinsight

21 May 2021, 06:54

2

3

1,771

by: TestPrepUnlimited

24 May 2021, 17:41

ER

If a/b > 4, is a > 8?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

wastedyouth

03 Dec 2013, 01:56

3

4

3,569

by: bumpbot

28 Feb 2024, 06:20

ER

If a/3 = 4/b , is a less than b?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

06 Oct 2015, 05:56

2

8

4,425

by: asethi

11 Oct 2015, 08:16

ER

If a*b*c=60, where a, b, and c are integers greater than 1

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

stunn3r

25 Jun 2013, 02:03

5

4

5,022

by: bumpbot

13 Jan 2022, 06:35

ER

If a*b*c≠0, Is a*b^2*c^3 > 0? 1) a^b >0 2) b^c > 0

555-605 (Medium) | Exponents, Inequalities

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

GMATinsight

18 Apr 2020, 07:20

7

2

1,653

by: Archit3110

18 Apr 2020, 09:39

ER

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

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

QuantMadeEasy

29 Jan 2020, 23:51

1

2

1,587

by: bumpbot

02 Dec 2023, 07:33

If a*b is not equal to 0, is ( a/b)> (b/a) ? (1) a=b+10 (2) b > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

TBT

07 Mar 2023, 23:10

1

2

1,670

by: gmatophobia

08 Mar 2023, 06:03

ER

If a*b is an even integer, is b a multiple of 2?

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

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

chetan2u

19 Jul 2017, 21:32

5

7

2,816

by: Purnank

05 Oct 2024, 07:03

ER

If a*b 0, is |a|/|b| = a/b? (1) |a*b| = a*b (2) |a|/|b| = |a/b|

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

devinawilliam83

11 May 2024, 13:34

12

3

7,119

by: bumpbot

11 May 2024, 13:30

ER

If a*b 0, and (x a)(x + b) = 0, is b = a? (1) x + a = 0 (2) x+b=0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

10 Feb 2023, 02:30

5

3

1,475

by: Suvankar8250

14 Mar 2023, 02:08

ER

If a*b = −8, what is the value of a + b? (1) a − b = 6 (2) a^2*b = 32

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

26 Nov 2019, 09:33

3

3,552

by: Crytiocanalyst

15 Oct 2021, 06:27

ER

If a* = a – a^2 for all values of a

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

LordStark

13 Feb 2019, 09:55

7

4

2,551

by: Bunuel

26 Aug 2025, 06:55

ER

If a(a 5)(a + 2) = 0, is a negative? (1) a(a 7) 0 (2) a^2 2a

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

16 Jun 2022, 21:30

1

1,046

by: yashikaaggarwal

17 Jun 2022, 02:53

ER

If a·b≠0, and (x+a)(x+b)=0, is x=a? (1) x−b=0 (2) a=−b

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

10 Mar 2021, 01:15

7

4

1,819

by: Bunuel

11 Mar 2021, 01:30

ER

If a,b,c, d are distinct even integers and a is prime, is

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

enigma123

08 Sep 2012, 02:24

16

10

9,106

by: bumpbot

24 Jul 2021, 03:54

If a,b,c, and d are integers, is their product odd?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

EthanTheTutor

09 Jun 2022, 01:47

1

1,004

by: EthanTheTutor

09 Jun 2022, 01:51

ER

If a,b, and c are positive integers with at least one of

705-805 (Hard) | Sequences, Statistics and Sets Problems

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

chetan2u

20 Jun 2018, 21:14

20

7

4,196

by: bumpbot

20 Oct 2021, 00:37

If a,b, $ c are positive integers, is a!b!/c! an integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Abhi077

05 Aug 2019, 22:15

2

1

1,507

by: nick1816

05 Aug 2019, 22:41

ER

If a,b and c are positive integers where a is greater than b and c=(a)

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

gmatyodha

07 Feb 2020, 01:38

20

3

1,656

by: MathRevolution

11 Feb 2020, 11:12

ER

If a, x, y, and z are integers greater than zero, are both x and y

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

29 Apr 2016, 04:03

4

2,593

by: Archit3110

01 Mar 2019, 04:50

ER

If a, m and n are positive integers, is n^(2a) a multiple of

705-805 (Hard) | Multiples and Factors

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

fireinbelly

30 Apr 2013, 05:40

48

4

9,889

by: bumpbot

28 Nov 2024, 22:32

ER

If a, c, d, x, and y are positive integers such that ay < x and c/d is

805+ (Hard) | Fractions and Ratios, Number Properties

805+ (Hard) | Fractions and Ratios, Number Properties hide tags

1, 2

Bunuel

04 May 2015, 06:13

95

21

9,705

by: bumpbot

13 Jun 2025, 04:21

ER

If a, b, x, y are positive integers and a^xb^y= 144, then a + b = ?

805+ (Hard) | Algebra, Exponents

805+ (Hard) | Algebra, Exponents hide tags

idontknowwhy94

05 Oct 2016, 05:34

42

5

6,777

by: bumpbot

29 Nov 2022, 10:57

ER

If a, b, x, and y are positive integers, is a^(-x) > b(-y)?

Sub 505 (Easy) | Algebra +2 tags

Sub 505 (Easy) | Algebra, Exponents, Inequalities hide tags

zbvl

07 May 2018, 21:53

28

10

13,709

by: bumpbot

07 Oct 2023, 14:33

ER

If a, b, x, and y are all positive, is a/b > x/y ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

24 Apr 2017, 03:34

18

8

4,009

by: GMATCoachBen

13 Nov 2021, 20:33

ER

If a, b, x and y are positive integers, what is the value of a - b?

705-805 (Hard) | Algebra, Exponents

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

Bunuel

06 Nov 2014, 09:05

25

4

8,222

by: bumpbot

03 Nov 2023, 12:33

ER

If a, b, x and y are distinct single digit positive integers, is the u

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

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

Bunuel

18 Jan 2023, 11:15

3

1,277

by: SaquibHGMATWhiz

19 Jan 2023, 02:03

ER

If a, b, k, and m are positive integers, is a^k factor of

555-605 (Medium) | Exponents, Multiples and Factors

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

udaymathapati

23 Aug 2010, 08:52

14

4

5,613

by: bumpbot

25 Aug 2022, 21:32

ER

If a, b, k, and m are positive integers, is a^k a factor of b^m?

505-555 (Easy) | Multiples and Factors

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

Bunuel

13 Jun 2019, 04:22

76

8

39,852

by: bumpbot

24 Jun 2025, 04:10