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

175

15

78,560

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,427

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

487,772

by: bb

29 Aug 2025, 13:27

ER

a, b, and c are three integers such that a and b are less than 100, an

805+ (Hard) | Number Properties, Sequences

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

Bunuel

22 Mar 2023, 08:07

60

17

8,174

by: bumpbot

06 Dec 2025, 20:56

a, b, and c are three integers such that a<b<c. Is a×b×c positive? 1)

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

TheUltimateWinner

12 Jul 2019, 10:12

1

2

1,541

by: KSBGC

12 Jul 2019, 11:12

ER

A, B, and C are three points on the line shown in the figure. In the

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

Bunuel

19 Jul 2019, 01:03

10

8

4,676

by: bumpbot

10 Mar 2023, 03:29

ER

a, b, and c are three positive integers such that abc=12. What is stan

555-605 (Medium) | Statistics and Sets Problems

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

TheUltimateWinner

10 Sep 2019, 12:27

1

1,744

by: chetan2u

10 Sep 2019, 18:39

ER

a, b, c and d are consecutive integers such that the product

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

rajathpanta

05 Nov 2012, 07:01

49

19

16,259

by: bumpbot

22 Dec 2021, 08:43

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

2,730

by: bumpbot

29 May 2021, 06:39

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A, B, C and D are positive integers such that A/B = C/D. Is C divisibl

655-705 (Hard) | Exponents +2 tags

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

Bunuel

16 Apr 2015, 04:46

39

10

9,084

by: bumpbot

13 Mar 2024, 03:46

a, b, c and N are four real numbers: a/(b+c) = b/(c+a) = c/(a+b) = N

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

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

amanvermagmat

08 Jan 2019, 22:32

9

6

1,795

by: Mo2men

10 Jan 2019, 03:22

ER

a, b, c are consecutive integers, so that a < b < c. Is the

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

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

eladshush

04 Oct 2010, 06:42

13

5

4,838

by: bumpbot

23 Jan 2021, 13:09

ER

A, b, c are diameters of 3 circles respectively. If ∠Z=90o, what is th

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

MathRevolution

08 Feb 2016, 00:04

10

7

3,044

by: CuriosStud

30 Jan 2022, 08:11

ER

A, B, C are digits where A×B is not zero. If AB, BA are both two-digit

705-805 (Hard) | Arithmetic, Number Properties

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

Bunuel

27 Apr 2022, 09:00

10

4

2,769

by: bumpbot

06 Jan 2025, 01:09

A, B, C are three positive numbers. Which is the greatest number

605-655 (Medium) | Inequalities, Number Properties

605-655 (Medium) | Inequalities, Number Properties hide tags

amanvermagmat

17 Mar 2018, 00:33

1

3

1,564

by: amanvermagmat

20 Mar 2018, 05:52

ER

A, B, C, and D are distinct points on a plane. If triangle A

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

1, 2

enigma123

19 Mar 2012, 10:23

51

36

25,227

by: bumpbot

01 Oct 2023, 00:24

ER

A, B, C, and D are distinct points on a plane. If triangle A

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

IrinaOK

04 Jul 2014, 05:50

7

13

5,243

by: Bunuel

04 Jul 2014, 05:52

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a, b, c, and d are integers; abcd ≠ 0; what is the value of cd?

Sub 505 (Easy) | Algebra, Exponents

Sub 505 (Easy) | Algebra, Exponents hide tags

Runner2

16 Jan 2012, 00:43

12

6

12,289

by: CrackverbalGMAT

19 Dec 2019, 01:15

ER

A, B, C, and D are points on a line in that order. If AD = 13, what is

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

fitzpratik

29 Sep 2017, 18:20

2

2,853

by: MathRevolution

01 Oct 2017, 13:29

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A, B, C, and D are points on a line. If C is the midpoint of line segm

505-555 (Easy) | Arithmetic

505-555 (Easy) | Arithmetic hide tags

AbdurRakib

15 Jun 2016, 03:20

100

7

47,712

by: bumpbot

24 Oct 2025, 03:41

ER

a, b, c, and d are positive integers. If (a + b)(c d) = r, where

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

sambam

16 Jan 2013, 14:31

62

11

18,237

by: bumpbot

30 Jul 2025, 15:09

ER

a, b, c, and d lie on the number line such that a < b.

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

pushpitkc

23 Aug 2018, 00:36

14

7

4,791

by: bumpbot

13 Aug 2023, 04:37

ER

A, B, C, D and E are five distinct positive integers such that D is th

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

23 Mar 2021, 03:00

2

1

1,053

by: TestPrepUnlimited

23 Mar 2021, 12:52

A, B, C, D and E are five positive integers such that D is the average

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

KANNUPRIYA17

26 Dec 2020, 00:00

2

4

2,616

by: gmatophobia

24 Dec 2021, 00:25

ER

A, B, C, D, and E are airline pilots with very busy travel schedules.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

29 Nov 2019, 02:33

2

3

4,223

by: bumpbot

13 Aug 2021, 01:00

ER

a, b, c, d, and e are five different positive integers. Which of the

Sub 505 (Easy) | Statistics and Sets Problems

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

Bunuel

19 May 2021, 05:00

1

3,305

by: Nidzo

19 May 2021, 05:59

ER

a, b, c, d, and e are five numbers such that a b c d e and e -

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

15 Feb 2021, 01:15

16

7

10,776

by: bumpbot

12 Dec 2025, 07:11

ER

a, b, c, d, and e are five numbers such that a≤b≤c≤d≤e and e-c=4. A is

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

03 Apr 2021, 04:00

10

2

3,503

by: bumpbot

20 Apr 2024, 06:35

ER

A, B, C, D, E are five distinct positive multiples of 10 suc

655-705 (Hard) | Min-Max Problems, Statistics and Sets Problems

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

amanvermagmat

15 May 2018, 22:41

13

2

2,964

by: bumpbot

02 Jun 2025, 23:15

ER

a, b, c, d, e What is the value of median of list of integers above if

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Kritisood

12 Jun 2020, 05:06

9

6

3,611

by: bumpbot

08 Aug 2023, 10:16

ER

A, B, C, D, E, and F are six consecutive positive odd integers in incr

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

25 Jan 2023, 10:15

1

1,152

by: gmatophobia

28 Jan 2023, 13:31

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A, B, P, and Q are four positive numbers. Does AQ = BP?

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

Bunuel

26 Feb 2015, 06:55

40

6

4,693

by: bumpbot

04 Dec 2022, 00:59

ER

A, B, R and S are four positive numbers. Does AS = BR?

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

SuyashA

22 Sep 2016, 19:59

51

10

7,835

by: bumpbot

14 Feb 2023, 06:14

ER

a, b, s, k are different non-zero integers...

705-805 (Hard) | Multiples and Factors

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

Limara1

02 Aug 2017, 16:28

2

5

1,549

by: bumpbot

26 Mar 2025, 21:09

ER

a, b, x and y are positive integers. If ay = bx, is 7 a factor of x?

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

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

Bunuel

26 Jun 2018, 06:24

2

6

3,472

by: bumpbot

20 Jun 2021, 05:11

ER

a, x, and k are positive integers. k is odd. Is a divisible by 24?

805+ (Hard) | Exponents

805+ (Hard) | Exponents hide tags

Bunuel

11 Dec 2017, 00:50

45

11

4,764

by: bumpbot

04 Feb 2023, 06:30

ER

a,b, c are three integers such that a<b<c. Is c greater than

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

TheUltimateWinner

15 Jul 2019, 10:40

2

1,842

by: CrackverbalGMAT

17 Jul 2019, 04:32

ER

a,b,x, and y are integers such that xayb=441. What is the value of x?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

TheUltimateWinner

30 Apr 2019, 15:33

4

1,260

by: TheUltimateWinner

30 Apr 2019, 15:31

ER

a/5 + 5/a > 2 ?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

pk123

23 Aug 2015, 04:29

8

7

2,503

by: bumpbot

29 Oct 2019, 16:18

A/B is a fraction in lowest terms. Is its decimal representation a te

655-705 (Hard) | Fractions and Ratios

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

Noshad

07 May 2019, 23:20

7

4

3,053

by: bumpbot

24 May 2025, 11:12

ER

a% of b is increased by a%.

505-555 (Easy) | Percent and Interest Problems

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

GMATBusters

14 Mar 2020, 19:09

4

9

2,374

by: bumpbot

11 Sep 2024, 16:46

ER

A=0.abc, where a, b and c are distinct digits, is A>34?

655-705 (Hard) | Fractions and Ratios

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

kiran1213

07 May 2019, 23:25

14

9

5,803

by: sarthak1701

22 Oct 2024, 01:55

ER

a=x+y and b=x-y. If a^2=b^2, what is the value of y?

655-705 (Hard) | Exponents, Inequalities

655-705 (Hard) | Exponents, Inequalities hide tags

HumptyDumpty

18 Jan 2013, 16:08

70

10

12,606

by: bumpbot

12 Jul 2025, 06:25

ER

AAAA is a four-digit number having the digit A and BCCC6 is a five-dig

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

Bunuel

17 Jun 2022, 13:30

7

4

2,003

by: bumpbot

31 Jan 2025, 11:27

ER

Aaliyah purchased 5 pencils and pens. If each pencil costs 18 cents an

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

05 Apr 2017, 03:24

4

3

4,360

by: bumpbot

18 Oct 2024, 13:57

ER

Aaron has how many more guitars than Bonnie?

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

01 Jan 2021, 09:30

9

2

1,929

by: bumpbot

17 Jun 2025, 22:49

ER

Aaron traveled d1 miles between city A and city B at a speed

705-805 (Hard) | Distance and Speed Problems

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

Bunuel

28 Nov 2022, 09:15

11

2

2,061

by: bumpbot

11 Nov 2025, 10:19

Aaron travels from town x to town y and then back from town y to town

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

philipssonicare

10 Oct 2018, 13:35

23

6

4,730

by: bumpbot

02 Jan 2025, 21:21

ER

ab + cd = efg

655-705 (Hard) | Algebra, Number Properties

655-705 (Hard) | Algebra, Number Properties hide tags

PrepTap

04 May 2015, 05:46

14

6

6,072

by: bumpbot

25 Dec 2025, 07:42

ER

ab = 0?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Creeper300

07 Nov 2010, 13:49

11

3

4,460

by: MathRevolution

24 Nov 2017, 16:25

ER

ab and ba are two-digit numbers. Find these numbers.

805+ (Hard) | Algebra, Number Properties

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

sherxon

18 Jun 2021, 22:03

9

2

4,353

by: IanStewart

20 Jun 2021, 08:59

ER

AB and CD are both diameters of a circle with centre O. So A, B, C, D

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

amanvermagmat

04 Jul 2018, 23:20

2

2,509

by: PKN

05 Jul 2018, 01:04

ER

AB is a chord of a circle. AB = 5 cm. A tangent parallel to AB touches

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

nick1816

10 Jun 2019, 10:20

5

8

5,111

by: catinabox

22 Jul 2020, 10:10