GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

179

15

80,034

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

858

24

189,052

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

488,796

by: bb

29 Aug 2025, 13:27

If a and b are positive integers, what is the value of a/b?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

GloryBoy92

16 Aug 2019, 07:39

6

3

2,913

by: bumpbot

10 Dec 2020, 20:44

ER

What is the value of x? (1) x^2 = 6x - 9 (2) x^2 = x + 6

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

07 Dec 2020, 02:15

1

2,951

by: chetan2u

07 Dec 2020, 03:41

ER

find x? 1) x^2-5x = 0 2) x is non negative integer

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

GMATinsight

05 Dec 2020, 23:13

2

986

by: Biswadip

05 Dec 2020, 23:25

ER

If (x - y)^2 = x^2 - y^2, what is the value of the non-zero integer xy

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

14 Jan 2020, 01:46

17

11

12,765

by: Basshead

03 Dec 2020, 17:20

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If 3b − |a| = 27, what is the value of b? (1) a^2 = 81 (2) a^3 > 0

505-555 (Easy) | Absolute Values, Algebra

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

Bunuel

18 Mar 2020, 09:14

7

4

4,235

by: xabi14

29 Nov 2020, 06:20

ER

What is the value of x/y? (1) y = 4x + 3 (2) 2x = 2y

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

shinna

05 Nov 2011, 11:59

10

8

4,562

by: bumpbot

26 Nov 2020, 02:08

ER

What is the value of x?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

10 Nov 2014, 08:29

14

13

7,596

by: bumpbot

25 Nov 2020, 12:03

ER

If s + t = 10, what is the value of q – r? (1) r = s (2) tq – sr + s

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

25 Jul 2018, 21:39

3

2,518

by: Basshead

24 Nov 2020, 05:06

ER

If m and n are positive integers such that m + n = 9, what is the valu

655-705 (Hard) | Algebra, Inequalities

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

Bunuel

03 Apr 2018, 21:31

10

5

3,369

by: Basshead

23 Nov 2020, 19:11

ER

What is the value of 9x^2 - 30xy + 25y^2 ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Ekland

01 Mar 2016, 01:19

6

12

8,215

by: Basshead

23 Nov 2020, 16:06

ER

If x, y and z are positive integers, can the value of (x + y

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

ProfChaos

19 Nov 2020, 20:03

4

1,228

by: ProfChaos

19 Nov 2020, 22:01

ER

If xy ≠ 0. Is x + y = 0 ? (1) x is reciprocal of y. (2) x ≠ 1.

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

10 Dec 2018, 02:21

4

2,778

by: bumpbot

18 Nov 2020, 07:08

ER

Is x^2 - y^2 an even integer?

805+ (Hard) | Algebra +2 tags

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

chetan2u

05 Jun 2016, 01:07

53

13

6,226

by: MHIKER

17 Nov 2020, 16:22

ER

If x ≠ –1 and y ≠ ±1, then what is the value of (xy − x)/((x + 1)(y −

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 Jul 2019, 00:41

1

3

1,282

by: bumpbot

17 Nov 2020, 16:13

ER

Z=2a×5b×7c A positive integer Z can be expressed in terms of its prime

805+ (Hard) | Algebra, Exponents

805+ (Hard) | Algebra, Exponents hide tags

niteshwaghray

23 May 2017, 00:34

21

9

3,627

by: MHIKER

12 Nov 2020, 15:56

ER

If x is a positive integer then find x? (1) x^2−5x+6=0 (2) x^2=3x

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

GMATinsight

26 Jan 2020, 05:44

7

1,912

by: MHIKER

12 Nov 2020, 07:38

ER

What is the sum of the squares of x^2 and y^2?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

07 Nov 2020, 10:18

2

3

1,194

by: TestPrepUnlimited

08 Nov 2020, 12:58

ER

What is the value of b?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

marcovg4

31 May 2013, 11:33

6

7

3,895

by: bumpbot

31 Oct 2020, 01:18

ER

Is x positive? (1) 1/(x+1) < 1/(x-1) where x ≠ 1; x ≠ -1 (2) x is eve

655-705 (Hard) | Algebra, Inequalities

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

siddharthkapoor

19 Oct 2020, 03:22

5

6

1,795

by: Pankaj0901

29 Oct 2020, 11:25

ER

Is x = y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

peacewarriors

08 Jul 2014, 02:03

8

7

2,960

by: bumpbot

29 Oct 2020, 02:43

ER

If p, s, and t are positive prime numbers, what is the value

555-605 (Medium) | Algebra +2 tags

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

vaivish1723

23 Jan 2010, 00:18

14

9

11,237

by: Basshead

28 Oct 2020, 12:21

ER

What is the value of x?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

audiogal101

29 Nov 2013, 04:06

3

5

2,943

by: bumpbot

28 Oct 2020, 09:07

ER

What is the value of x?

705-805 (Hard) | Algebra, Exponents

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

Bunuel

16 Jul 2017, 23:10

9

2

2,271

by: bumpbot

25 Oct 2020, 22:12

ER

What is the value of x? (1) 310x + 562y = 909 (2) 951x – 626y = 323

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

23 Oct 2020, 00:15

6

2,425

by: Nipungupta9081

24 Oct 2020, 04:23

ER

What is the value of C + B? (1) A + B = C + D = E + F (2) (E + F) =

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

22 Oct 2020, 00:15

6

2,442

by: akadiyan

22 Oct 2020, 20:53

ER

Is x/y = 1 ? (1) x^3/y^3 = 1 (2) x^2/y^2 = 1

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Niveditha28

19 Oct 2020, 05:47

3

4

1,529

by: MathRevolution

20 Oct 2020, 11:01

ER

If x ≠ 0, what is x ? (1) x(x^5)^2/x^4 = 128 (2) x(x^2)^5/x^3 = 256

555-605 (Medium) | Algebra, Exponents

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

Bunuel

12 Jul 2019, 02:07

7

4

1,977

by: bumpbot

08 Oct 2020, 11:28

ER

If M < N, is M^2-MN < 0?

805+ (Hard) | Algebra, Inequalities

805+ (Hard) | Algebra, Inequalities hide tags

GMATBeast

24 Dec 2013, 23:11

17

16

5,523

by: bumpbot

06 Oct 2020, 23:27

ER

What is the value of ab + bc ? (1) b = 5 (2) a + c = 8

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

06 Dec 2015, 12:06

2

9

6,052

by: bumpbot

05 Oct 2020, 10:50

ER

What is the value of u? (1) 7/u - 4 = 10 (2) 32/16 = 1/u

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

05 Oct 2020, 04:15

2

1

1,094

by: Akp880

05 Oct 2020, 04:19

ER

If x ≠ y, is y - x > 1/(x-y)?

605-655 (Medium) | Algebra, Inequalities

605-655 (Medium) | Algebra, Inequalities hide tags

CAMANISHPARMAR

15 Jun 2019, 07:12

5

3,360

by: bumpbot

04 Oct 2020, 23:38

ER

What is the value of integer A ? (1) n = nA (2) 1^n ≠ n

655-705 (Hard) | Algebra, Exponents

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

Bunuel

02 Oct 2020, 03:00

12

5

2,143

by: Archit3110

02 Oct 2020, 08:08

ER

What is the value of x^2yz + xy^2z + xyz^2 ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

rraggio

15 Sep 2010, 07:38

5

12,784

by: bumpbot

02 Oct 2020, 03:16

ER

Is x y? (1) x(x - y) = 5 (2) x - y < 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

goodyear2013

21 Jan 2014, 00:45

6

5

3,807

by: bumpbot

30 Sep 2020, 11:30

ER

What is the value of ab? (1) 3a+ 2b = 23 (2) a + 4b = 21

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

29 Sep 2020, 01:43

1

3

1,882

by: TestPrepUnlimited

30 Sep 2020, 08:44

ER

What are the values of 3 integers a,b and c

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

AdityaHongunti

01 Feb 2023, 13:48

8

5

5,209

by: chetan2u

29 Sep 2020, 09:23

ER

If xy ≠ 0, what is the value of x? (1) yx^2 + 4xy + 4y = 0 (2) y = 6

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

26 Sep 2019, 04:22

6

4

5,864

by: ansug2000

28 Sep 2020, 09:26

ER

If F is a function defined in the positive integers, such that F(k) is

605-655 (Medium) | Algebra +2 tags

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

fskilnik

10 Mar 2019, 08:09

6

3

2,334

by: bumpbot

25 Sep 2020, 05:37

ER

What is the value of (4a - b)/(a - b)?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

11 Jan 2018, 23:37

13

2

2,782

by: Target4bschool

24 Sep 2020, 12:27

ER

If a + b + c = 50, what is the value of a ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

22 Feb 2018, 21:08

3

8

3,076

by: MathRevolution

18 Sep 2020, 05:59

ER

If a and b are integers, what is the value of a^2 + b^2 ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

15 Sep 2020, 05:00

3

1,780

by: Akp880

15 Sep 2020, 06:17

ER

What will be the value of a/b ? Given that a and b are

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

gmihir

19 May 2012, 08:56

6

4

3,410

by: bumpbot

14 Sep 2020, 21:56

ER

If 5w + 3v = 13, what is the value of vw ? (1) w > 0 (2) w/v = 2

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

13 Sep 2020, 03:00

2

3

3,039

by: Bunuel

13 Sep 2020, 03:42

ER

Given z > 0, is x*z > 0? (1) xz = 3x (2) xz = -3x

655-705 (Hard) | Algebra, Inequalities

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

Bunuel

11 Dec 2018, 02:05

3

5

3,002

by: bumpbot

12 Sep 2020, 21:47

ER

If m, n, and p are positive integers, mnp= ?

805+ (Hard) | Algebra, Number Properties

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

BillyZ

23 Mar 2017, 00:17

21

9

6,699

by: bumpbot

10 Sep 2020, 22:25

ER

Does p^2 = q if p is a prime number?

655-705 (Hard) | Algebra, Number Properties

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

babusona

26 Apr 2016, 07:26

9

11

8,633

by: bumpbot

07 Sep 2020, 01:10

ER

What is the value of x^3 + y^3 ? (1) x + y = 7 (2) x^2 + y^2 = 25

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

06 Sep 2019, 10:55

8

2

2,051

by: CrackverbalGMAT

05 Sep 2020, 04:26

ER

If a and b are different integers, what is the value of a?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

25 Sep 2017, 23:42

4

2,130

by: bumpbot

01 Sep 2020, 11:31

ER

Given that x and y are real numbers, what is the value of x + y ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

19 May 2016, 03:13

2

7,293

by: bumpbot

01 Sep 2020, 07:52

ER

What is the value of p?

Sub 505 (Easy) | Absolute Values, Algebra

Sub 505 (Easy) | Absolute Values, Algebra hide tags

Bunuel

20 Dec 2015, 05:14

11

4

4,791

by: Bunuel

01 Sep 2020, 03:17