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

182

15

82,804

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of May 2026

1, 2

Bunuel

01 Jan 2026, 05:45

862

24

191,018

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

490,954

by: bb

29 Aug 2025, 13:27

ER

X = 2*(P/ Q)^(n+1). Find X if P, Q and n are positive integers.

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

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

Bunuel

28 Nov 2022, 11:15

3

1

932

by: gmatophobia

28 Nov 2022, 22:39

ER

x = 2y + z, where z < y. Find x.

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

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

PrepTap

18 May 2015, 22:40

18

9

4,381

by: bumpbot

04 Dec 2022, 05:07

ER

X and Y are 2-digit positive no. and Z is a 3-digit positive no., such

805+ (Hard) | Number Properties, Remainders

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

freedom128

05 Dec 2024, 01:57

12

8

2,762

by: bumpbot

05 Dec 2024, 01:48

ER

x and y are both non-zero integers. Are x and y both less than

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nick1816

21 May 2019, 03:41

3

1,285

by: nick1816

22 May 2019, 09:28

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X and Y are both positive integers whose combined factors include 3 an

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Sajjad1994

09 Apr 2019, 10:24

8

7

2,623

by: aserghe1

09 Jun 2018, 06:44

ER

x and y are consecutive integers such that x > y. What is the absolute

605-655 (Medium) | Absolute Values, Number Properties

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

Bunuel

07 Mar 2016, 11:08

11

7

4,353

by: bumpbot

09 Nov 2022, 03:34

ER

x and y are consecutive integers, and x < y. What is the value of x?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

06 Dec 2017, 00:36

3

4

2,502

by: bumpbot

07 Apr 2020, 05:57

X and Y are distinct non negative real numbers. What is the sum (X+Y)?

555-605 (Medium) | Algebra, Number Properties

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

amanvermagmat

17 Jan 2019, 22:10

3

2,044

by: Chethan92

17 Jan 2019, 23:43

x and y are distinct positive integers. What is the positive

655-705 (Hard) | Multiples and Factors

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

ChandlerBong

28 May 2023, 04:27

4

2

1,646

by: bumpbot

05 Aug 2024, 00:19

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X and Y are integers and Y is not 0. Is X negative? (1) Y-1

605-655 (Medium) | Absolute Values, Number Properties

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

amanvermagmat

16 Aug 2018, 20:29

1

1,327

by: chetan2u

16 Aug 2018, 20:44

ER

x and y are integers such that xy < 0. If x^2 – y^2 = 0, what is the

705-805 (Hard) | Algebra, Exponents

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

Bunuel

26 Jan 2022, 07:30

3

1

1,527

by: truplayer257

26 Jan 2022, 20:25

ER

X and Y are non zero integers. What is the value of|

705-805 (Hard) | Absolute Values, Number Properties

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

amanvermagmat

28 Nov 2018, 08:08

12

3

2,281

by: chetan2u

18 Oct 2022, 20:00

ER

x and y are non-zero integers. Is x^y a positive number?

655-705 (Hard) | Exponents, Number Properties

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

Bunuel

27 Jan 2022, 02:30

6

2,612

by: cats

12 Mar 2024, 12:19

X and Y are non-zero real numbers. Is X/Y > Y/X? (1) X^2 > Y^2 (2)

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

amanvermagmat

21 Jan 2019, 22:00

1

1,579

by: KSBGC

21 Jan 2019, 22:57

ER

x and y are nonzero integers. Does x = y? |x| - x = 2y.

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

ccheryn

06 Nov 2019, 00:29

9

3

2,258

by: bumpbot

05 May 2023, 07:31

ER

x and y are positive integers, is x=y ?

705-805 (Hard) | Absolute Values

705-805 (Hard) | Absolute Values hide tags

kamathimanshu

17 Aug 2015, 03:49

77

18

16,985

by: bumpbot

21 Nov 2024, 01:48

ER

x and y are positive integers. If p and q are different prime numbers

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

22 Jun 2023, 08:00

1

878

by: Archit3110

22 Jun 2023, 09:08

ER

x and y are positive integers. If the greatest common divisor of 2x

705-805 (Hard) | Multiples and Factors

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

BrentGMATPrepNow

03 Apr 2017, 07:43

43

5

6,714

by: bumpbot

28 Mar 2024, 10:01

ER

x and y are positive integers. If the greatest common divisor of 3x

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

BrentGMATPrepNow

01 Apr 2017, 07:33

59

8

8,702

by: bumpbot

22 Apr 2024, 02:10

ER

x and y are positive integers. Is x^0.5*y^0.5 an integer?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

04 Nov 2019, 03:26

24

3

4,164

by: bumpbot

01 Oct 2023, 02:20

x and y are positive integers. Is x-y even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

TheUltimateWinner

31 Oct 2020, 08:41

1

3

2,136

by: bumpbot

15 Feb 2022, 12:45

x and y are positive integers. Is x+y divisible by 24 ? 1) xy+1 is di

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

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

nick1816

15 Nov 2019, 00:42

9

3

2,312

by: hadimadi

25 Dec 2021, 06:15

ER

x and y are positive integers. What is the remainder when x is divided

655-705 (Hard) | Number Properties, Remainders

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

blitzkriegxX

17 Dec 2018, 01:27

24

17

4,496

by: bumpbot

26 Nov 2025, 11:09

ER

x and y are positive integers. When x is divided by 2y

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

BrentGMATPrepNow

30 Mar 2017, 08:23

40

7

6,126

by: bumpbot

16 Apr 2024, 08:45

X and Y are positive numbers. Is the hundredth digit of XY

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g81

06 Jun 2012, 13:38

1

2

2,460

by: g81

06 Jun 2012, 14:05

ER

X and Y are positive numbers. Is the hundredth digit of XY greater tha

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

17 Feb 2020, 05:04

1

1,299

by: CareerGeek

18 Feb 2020, 23:28

ER

x and y are prime numbers such that 9 < x < 100 and y is the reverse

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

07 Nov 2019, 03:32

12

5

3,829

by: bumpbot

14 Dec 2024, 03:31

ER

X and Y are real numbers. Is X*Y negative? (1) (X+Y)^2 > 0 (2) X = Y

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

amanvermagmat

13 Jan 2019, 22:13

5

7

2,275

by: bumpbot

08 May 2024, 04:32

ER

x and y are real numbers. Is y negative? (1) x^y > 0 (2) y^x > 0

555-605 (Medium) | Exponents, Number Properties

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

amanvermagmat

26 Jul 2018, 22:13

12

4

2,833

by: bumpbot

20 Oct 2021, 21:29

ER

X and Y are sets of positive integers. Is the greatest integer in X gr

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

anairamitch1804

09 Feb 2017, 11:40

14

6

10,278

by: bumpbot

02 Jul 2025, 13:58

ER

X and Y are the lengths of two non-hypotenuse sides of a right triangl

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

rohit8865

12 Sep 2016, 04:52

6

9

3,074

by: bumpbot

11 Apr 2022, 08:33

ER

X and Y are the lengths of two non-hypotenuse sides of a right triangl

555-605 (Medium) | Geometry, Number Properties

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

Bunuel

23 Jun 2016, 02:00

15

5

4,136

by: bumpbot

14 Sep 2023, 08:45

ER

x and y are the tens digit and the units digit respectively

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Suvankar8250

15 Mar 2023, 02:55

5

2,310

by: rohit2156112

10 Nov 2024, 12:34

ER

x and y are two integers greater than 1. Is x^y greater than

805+ (Hard) | Exponents, Multiples and Factors

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

Bunuel

14 Feb 2014, 02:14

24

5

7,680

by: bumpbot

27 Jun 2021, 21:46

X and Y are two non zero numbers. What is |X| - |Y|?

655-705 (Hard) | Absolute Values, Algebra

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

amanvermagmat

30 Nov 2018, 20:15

4

2,417

by: NCRanjan

01 Dec 2018, 03:25

ER

X and Y are two numbers such that |X|=|Y|. What is the sum

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

amanvermagmat

30 Nov 2018, 04:01

1

2,066

by: DavidTutorexamPAL

30 Nov 2018, 04:07

ER

x and y are two positive integers. D is the greatest common divisor of

555-605 (Medium) | Multiples and Factors

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

Bunuel

13 Sep 2021, 01:30

6

11

3,792

by: GMATWhizTeam

15 Sep 2021, 22:43

ER

x and y are two positive integers. Is x divided by y an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

kavach

22 Jul 2019, 23:37

4

3

2,041

by: bumpbot

27 May 2021, 22:16

ER

x and y are two positive integers. Which number among x and y has more

705-805 (Hard) | Multiples and Factors

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

AkhilAggarwal

26 May 2021, 16:48

9

2

2,870

by: SaquibHGMATWhiz

22 Aug 2022, 22:45

X and Y are two positive numbers. Is X > Y ? (1) (X+Y)/2 > Y (2)

605-655 (Medium) | Arithmetic, Percent and Interest Problems

605-655 (Medium) | Arithmetic, Percent and Interest Problems hide tags

amanvermagmat

13 Aug 2018, 22:54

8

6

3,618

by: sayan640

21 Jun 2024, 17:43

ER

x and y are two single digit positive integers. What is the sum (x+y)?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

amanvermagmat

08 Jan 2019, 23:21

10

8

2,613

by: Kem12

10 Jan 2019, 01:18

ER

X and Y start traveling in the same direction, from a particular point

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

Bunuel

06 Jul 2017, 02:34

12

5

3,031

by: bumpbot

25 Dec 2024, 19:39

ER

X and Y, two computer engineers, built identical websites at different

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

06 Nov 2019, 02:21

11

5

4,630

by: Fdambro294

09 May 2023, 19:13

x boys can complete a work in 15 days and y girls can complete the

805+ (Hard) | Work and Rate Problems

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

Subhajit007

10 May 2019, 02:09

18

4

4,555

by: bumpbot

29 Jan 2026, 02:41

ER

x equals to y% of what number? (1) x = 3y (2) 6y + 2x = 56x/14

555-605 (Medium) | Percent and Interest Problems

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

craky

27 Jan 2011, 02:38

5

5,232

by: Nightfury14

24 Jun 2016, 11:44

ER

x gallon 40% alcohol solution is mixed with another y gallon10% alcoho

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

GMATinsight

25 Apr 2019, 20:46

28

7

5,799

by: bumpbot

28 Sep 2025, 00:16

ER

X grams of a solution containing 20 percent P (by weight) is mixed

655-705 (Hard) | Statistics and Sets Problems

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

Abhi077

27 Oct 2018, 07:00

9

3

2,536

by: bumpbot

30 Dec 2024, 01:28

ER

X grams of water were added to the 80 grams of a strong

805+ (Hard) | Mixture Problems

805+ (Hard) | Mixture Problems hide tags

prasun84

18 Nov 2008, 11:16

270

10

32,891

by: Gmat860sanskar

04 May 2026, 09:57

ER

X is 45.6% larger than Y. What is the value of Y?

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

19 May 2021, 08:00

1

1,896

by: TestPrepUnlimited

22 May 2021, 13:10

ER

X is a 4-digit integer, and Y is a 3-digit integer. Is the sum of the

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

04 Oct 2023, 01:30

2

1

1,021

by: LucienH

04 Oct 2023, 16:38