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

80,026

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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

189,051

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DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,795

by: bb

29 Aug 2025, 13:27

What is the value of x-y? (1) x + y = 11 (2) 4x - 4y = 8

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Russ19

30 Aug 2020, 07:59

4

3

1,863

by: abhijitpatil

30 Aug 2020, 09:43

ER

Is |a| = b - c ? (1) a + c does not equal b (2) a < 0

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

rjkaufman21

20 Sep 2011, 08:04

3

10

4,188

by: bumpbot

28 Aug 2020, 16:02

ER

What is the value of a – b?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

AbdurRakib

05 Jun 2016, 14:02

8

5

4,269

by: bumpbot

28 Aug 2020, 02:06

ER

If j and k are positive integers, what is the value of j?

705-805 (Hard) | Absolute Values, Algebra

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

BrentGMATPrepNow

22 Aug 2020, 08:42

14

8

4,451

by: BrentGMATPrepNow

22 Aug 2020, 12:24

ER

If y = 2(x+1) what is the value of x + y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

14 Apr 2015, 04:48

7

4

3,306

by: bumpbot

13 Aug 2020, 18:04

ER

Does x + y = 11 ? (1) x^2 + y^2 = 101 (2) xy = 10

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

12 Aug 2020, 01:06

4

9

2,760

by: bidskamikaze

12 Aug 2020, 17:49

ER

If p and q are positive integers, is q odd?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

a70

04 Oct 2018, 03:40

7

3

3,496

by: bumpbot

11 Aug 2020, 21:40

Jason went to a supermarket to buy two varieties of chocolates. If the

655-705 (Hard) | Algebra, Inequalities

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

kiran120680

01 May 2019, 09:28

5

2

2,252

by: pratikpokharkar

07 Aug 2020, 23:48

ER

Is x = 9?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

rockroars

10 Nov 2010, 04:53

3

4

3,713

by: bumpbot

28 Jul 2020, 03:52

ER

Is x = √8 ? (1) x^2 − 4√2*x + 8 = 0 (2) x^2 + 2√2 *x − 16 = 0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

27 Jul 2020, 03:09

3

6

2,312

by: KaramveerBakshi

27 Jul 2020, 07:36

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If x – y = z, what is the value of y? (1) x = 7 (2) z = x + 4

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

07 Apr 2020, 07:09

1

2

1,399

by: v12345

22 Jul 2020, 23:38

ER

Does xy = 0 ? (1) x = y (2) 2x = 0

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

23 May 2020, 04:17

1

2

3,283

by: v12345

22 Jul 2020, 09:19

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What is the value of x? (1) x(y - z) = 0 (2) yz < 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Russ19

03 Jul 2020, 11:13

12

7

3,004

by: ifteec464

21 Jul 2020, 11:59

Is x = 3?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

hiteshahire22

12 Sep 2015, 11:22

38

2

2,975

by: bumpbot

21 Jul 2020, 05:51

ER

Is y = 7?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 Mar 2016, 13:35

4

5

3,559

by: bumpbot

21 Jul 2020, 02:10

ER

If |x + 3| = 3, what is the value of x? (1) x^2 ≠ 0 (2) x^2 + 6x = 0

555-605 (Medium) | Absolute Values, Algebra

555-605 (Medium) | Absolute Values, Algebra hide tags

Bunuel

21 Sep 2018, 01:41

5

4

2,848

by: bumpbot

18 Jul 2020, 08:01

ER

if a^2 * a^b = a^z ,

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

GMATBusters

11 Jul 2020, 19:16

19

16

2,535

by: Kinshook

14 Jul 2020, 10:17

ER

If x/2 + y = z, what is the value of z ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

25 Sep 2017, 00:08

3

5

2,194

by: bumpbot

14 Jul 2020, 07:48

In the equation x^2 − cx + c = 0, c is a constant, and x is a variable

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

FridaElisa

06 Jul 2020, 00:00

9

3,811

by: FridaElisa

13 Jul 2020, 08:03

ER

If 3x - 3 - 4x = x - 7 - 2x + 4, then what is the value of x ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Sajjad1994

21 Mar 2020, 01:00

2

7

2,108

by: KaramveerBakshi

13 Jul 2020, 03:08

ER

How many odd factors does the integer n have?

605-655 (Medium) | Algebra, Number Properties

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

firas92

03 Jun 2019, 00:27

18

7

4,503

by: gurmukh

10 Jul 2020, 09:20

ER

What is the value of x? (1) 5x + 10y = 65 (2) 130 – 20y = 10x

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

02 May 2019, 06:29

4

3

3,530

by: bumpbot

07 Jul 2020, 10:13

ER

What is the value of x^2 – 5xy + 6y^2? (1) 3y - x = 0 (2) 2x - y = 0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Russ19

07 Jul 2020, 00:59

3

2

1,760

by: IanStewart

07 Jul 2020, 05:32

ER

If x and y are positive integers, what is the value of x/y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Jun 2015, 03:57

8

5

5,498

by: bumpbot

05 Jul 2020, 16:56

ER

What is the value of x? (1) (3x - 2)(2x + 1) = 0 (2) (2/3 - x)(1/2 -x)

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Russ19

21 Jun 2020, 10:20

4

3,031

by: hiranmay

04 Jul 2020, 07:23

ER

Is x > y? (1) 12x = 4c (2) c = 3y^4

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

01 Jul 2020, 23:02

10

17

3,168

by: bidskamikaze

03 Jul 2020, 01:41

ER

What is the value of b? (1) b(b - 8) = -16 (2) (b + 4)^2 = 64

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

01 Jul 2020, 01:37

14

16

5,183

by: monikakumar

01 Jul 2020, 20:02

ER

If x and y are prime numbers, and a and b are positive integers, is x/

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

30 Jun 2020, 01:56

9

11

3,882

by: Neha2404

30 Jun 2020, 22:20

ER

The theatre made an arrangement with the acting company that

605-655 (Medium) | Algebra, Word Problems

605-655 (Medium) | Algebra, Word Problems hide tags

Reni

24 May 2014, 09:17

6

3

3,065

by: bumpbot

30 Jun 2020, 10:57

ER

What is the value of integer n ? (1) n(n + 1)(n + 2) = 120 (2) n! = 24

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 Sep 2017, 00:27

5

6

3,946

by: hardikjain

30 Jun 2020, 10:37

ER

If a, b and c are positive, is ac > 5?

655-705 (Hard) | Algebra, Inequalities

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

Bunuel

14 Aug 2017, 02:02

11

5

3,409

by: bumpbot

30 Jun 2020, 03:06

ER

Is x a positive integer?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

chetan2u

29 Jun 2020, 23:32

3

2

2,234

by: RaghavKhanna

30 Jun 2020, 00:09

ER

What is the value of x? (1) 1/x^2 = 1/16 (2) 1/2x = 1/8

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

25 Jun 2020, 10:43

4

1,279

by: vipulshahi

28 Jun 2020, 09:38

ER

What is the value of 6y + 2x^2 ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

01 Nov 2015, 09:26

1

7

3,155

by: bumpbot

26 Jun 2020, 10:10

What is the value of z/x? (1) 2x – y + 3z = 5 (2) x + 2y – z = -10

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Russ19

24 Jun 2020, 09:12

4

5

2,145

by: Papist

24 Jun 2020, 11:02

ER

If x and y are integers, what is the value of x^2 + 2xy + y^2 ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

09 Mar 2020, 05:44

1

2

2,913

by: BrentGMATPrepNow

22 Jun 2020, 12:05

What is the value of X?

555-605 (Medium) | Algebra, Arithmetic

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

fitzpratik

18 Jan 2019, 08:59

8

5

2,466

by: bumpbot

09 Jun 2020, 16:06

If x and y are both non-zero numbers, is x < 4 < y? (1) x < y and xy

705-805 (Hard) | Algebra, Inequalities

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

amanvermagmat

07 Jun 2018, 05:38

4

3

1,917

by: bumpbot

05 Jun 2020, 13:00

ER

If x and y are positive integers, what is the value of xy?

705-805 (Hard) | Algebra, Exponents

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

chetan2u

01 Jun 2020, 01:03

8

4

3,064

by: chetan2u

02 Jun 2020, 21:56

ER

If 4a = 7b = 21c, what is the value of b?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Sajjad1994

30 May 2020, 05:03

1

4

2,469

by: Archit3110

30 May 2020, 09:05

ER

Each of a, b, and c is a positive integer, 3b < a, and a + b = c. What

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

26 Jul 2018, 00:22

6

4

3,566

by: Bunuel

28 May 2020, 11:50

ER

If x is a negative number, what is the value of x?

655-705 (Hard) | Absolute Values, Algebra

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

Bunuel

14 May 2020, 09:20

1

2

2,221

by: Anuragjn

26 May 2020, 23:43

ER

If y ≠ 0, what is the value of x/y? (1) x = 2y (2) x = y + 2

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

23 May 2020, 05:41

2

5

4,540

by: NitishJain

25 May 2020, 12:50

ER

If xy = z, what is the value of y ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

25 Sep 2017, 23:58

12

7

7,338

by: bumpbot

25 May 2020, 06:39

If John is exactly twice as old as Mark,how old is John?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

cfc198

28 Dec 2018, 12:11

3

2

1,768

by: bumpbot

23 May 2020, 07:43

ER

If y ≠ 0, is x/y an integer? (1) x – 2y = 0 (2) x = 60^(1/2) and

Sub 505 (Easy) | Algebra, Number Properties

Sub 505 (Easy) | Algebra, Number Properties hide tags

Bunuel

23 May 2020, 05:48

4

2

3,257

by: Archit3110

23 May 2020, 05:56

ER

What is the value of 2P + Q0, where P is the units digit and Q is the

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Eduardo86

21 May 2020, 06:31

3

1,700

by: Eduardo86

21 May 2020, 09:16

ER

If x > 0, what is the value of x? (1) x is equal to half of its square

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

20 May 2020, 09:33

3

5

2,003

by: NitishJain

21 May 2020, 00:23

ER

What is the value of B if a = b/c^2 ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

06 May 2015, 03:36

5

10

3,616

by: Ved22

19 May 2020, 21:24

ER

If x - y < 0, what is the value of x + y?

505-555 (Easy) | Algebra, Inequalities

505-555 (Easy) | Algebra, Inequalities hide tags

Bunuel

14 Aug 2017, 07:58

4

6

2,549

by: bumpbot

19 May 2020, 16:27