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

176

15

78,789

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,563

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

487,994

by: bb

29 Aug 2025, 13:27

ER

What is the value of x − y ? (1) 3y − 39 = 3x (2) y = 13 + x

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

04 May 2021, 20:00

1

846

by: Kinshook

04 May 2021, 20:29

ER

What is the value of x − 3z?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

01 Dec 2021, 05:45

1

1,209

by: Showmeyaa

01 Dec 2021, 13:30

ER

What is the value of x + y? (1) x^2 + y^2 = 5 (2) xy = 2

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

13 Apr 2023, 01:30

3

2

1,023

by: wickedvikram

13 Apr 2023, 02:22

ER

What is the value of x + y? (1) Line A || Line C (2) Line B || Line D

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

MathRevolution

07 Jun 2016, 19:03

2

4

1,924

by: MathRevolution

09 Jun 2016, 20:45

ER

What is the value of x + y? (1) 7x + 3y + 6z = 16 (2) 3x + 5y = 3z + 5

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

10 Feb 2017, 09:50

15

7

6,221

by: bumpbot

05 Dec 2022, 19:25

ER

What is the value of x + y? (1) |x + y| = 11 (2) (44(x + y))^(1/2) =22

505-555 (Easy) | Absolute Values, Roots

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

Bunuel

03 Apr 2018, 21:34

5

3

4,899

by: bumpbot

18 Sep 2025, 14:28

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

14 Oct 2019, 02:42

9

8

6,503

by: bumpbot

20 Oct 2023, 07:06

ER

What is the value of x + y? (1) x + 2 = 5 - y (2) (x + y)^2 = 9

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

10 Jul 2018, 22:05

2

3

1,305

by: rever08

11 Jul 2018, 20:31

ER

What is the value of x + y? (1) When x is multiplied by 6, the result

555-605 (Medium) | Multiples and Factors

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

Bunuel

27 Jan 2020, 02:40

1

2,467

by: GMATinsight

27 Jan 2020, 07:11

ER

What is the value of x + y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

gmatfeelizzle

02 Apr 2013, 10:08

10

6

3,832

by: bumpbot

28 Jul 2021, 04:42

ER

What is the value of x + y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

23 Jul 2015, 02:55

9

5

2,994

by: bumpbot

21 Mar 2019, 08:38

ER

What is the value of x + y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

14 Nov 2014, 09:51

3

4

3,668

by: Bunuel

17 Nov 2014, 12:15

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Sajjad1994

06 Sep 2019, 07:24

1

2

1,504

by: ccooley

08 Sep 2019, 12:20

ER

What is the value of x + y in the figure above?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Walkabout

26 Dec 2012, 05:18

357

14

55,962

by: bumpbot

10 Jan 2026, 04:33

ER

What is the value of x + y = ? (1) x^2 + y^2 = 5 (2) xy = 2

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

25 Sep 2019, 21:53

2

1

1,414

by: shridhar786

25 Sep 2019, 22:20

ER

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

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

29 Oct 2019, 02:11

3

1

1,211

by: chetan2u

29 Oct 2019, 05:15

ER

What is the value of x + y + z?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

18 Jul 2022, 01:30

3

1

1,624

by: gmatophobia

18 Jul 2022, 03:37

ER

What is the value of x + y ? (1) x + y is between 50 and 60 (2) x and

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

27 Mar 2023, 08:30

1

842

by: bv8562

27 Mar 2023, 09:08

ER

What is the value of x + y ? (1) x + y + z = x + y z + 1 (2) x y

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 May 2022, 06:00

3

2

1,158

by: GMATWhizTeam

11 May 2022, 12:22

ER

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

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Sajjad1994

30 Sep 2019, 10:05

1

1,092

by: stne

04 Oct 2019, 09:19

ER

What is the value of x + y ? (1) 2x + 3y = 11 (2) 3x + 2y = 9

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

17 May 2022, 01:30

1

915

by: zhanbo

17 May 2022, 01:59

ER

What is the value of x + y ? (1) xy+ wz + xz+ wy= 8 (2) y + z = 4

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

23 Nov 2016, 03:05

1

2

2,465

by: rohit8865

23 Nov 2016, 19:26

ER

What is the value of x + y ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

09 Sep 2023, 05:00

11

1

1,182

by: gmatophobia

09 Sep 2023, 15:10

ER

What is the value of x + y ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Sajjad1994

10 Apr 2020, 02:56

1

2

1,339

by: CrackverbalGMAT

19 Apr 2020, 07:45

ER

What is the value of x + 7 ?

555-605 (Medium) | Absolute Values, Algebra

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

mehdiov

03 Apr 2013, 01:17

89

9

29,534

by: bumpbot

20 Oct 2024, 03:17

ER

What is the value of x + 3y + 7?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

vivaslluis

24 Jul 2016, 10:31

13

5

4,430

by: SaquibHGMATWhiz

09 Jun 2023, 07:38

ER

What is the value of x (1) x^2 - 5x + 4 = 0 (2) x is not prime

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

info2scs

14 May 2012, 16:52

4

3

11,101

by: bumpbot

10 Apr 2024, 11:29

ER

What is the value of x ? (1) xy = 6 (2) x + y = 5

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

15 Jan 2018, 08:38

3

5

3,545

by: bumpbot

24 Feb 2020, 03:37

ER

What is the value of x ? (1) x(x − 1) = 12 (2) x(x + 6) = −9

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

05 Mar 2019, 05:18

3

1,774

by: bumpbot

19 Jan 2021, 03:43

ER

What is the value of x ? (1) x^4 = |x| (2) x^2 > x

555-605 (Medium) | Absolute Values, Inequalities

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

guerrero25

11 Feb 2013, 01:09

33

3

7,466

by: bumpbot

14 Aug 2025, 07:04

ER

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

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

30 May 2023, 03:45

5

2,050

by: Bunuel

05 Dec 2024, 23:36

ER

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

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

18 Nov 2022, 04:42

1

846

by: divyadna

18 Nov 2022, 05:25

ER

What is the value of x ? (1) x^2 9 = 0 (2) x > 0

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 May 2022, 04:30

1

915

by: ThatDudeKnows

12 May 2022, 21:09

ER

What is the value of x ? (1) x^2 = 19 (2) 19^2 = x

555-605 (Medium) | Algebra, Roots

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

Bunuel

17 Oct 2023, 01:30

3

1

1,106

by: DanTheGMATMan

19 Oct 2023, 22:12

ER

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

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 May 2022, 02:30

1

2

1,419

by: MBAHOUSE

15 Jul 2022, 08:01

ER

What is the value of x ? (1) x^2 - 1 = x + 1 (2) x + 3 is a prime

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

28 Jun 2023, 02:57

6

3

1,547

by: Bunuel

24 Dec 2024, 05:59

ER

What is the value of x ? (1) x^(4x) = 1 (2) x^(-x) = -1

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Bunuel

25 Sep 2023, 05:15

1

895

by: IshanSaini

25 Sep 2023, 11:51

ER

What is the value of x ? (1) x is the sum of two distinct prime number

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

05 Mar 2019, 05:17

5

4

2,401

by: bumpbot

25 Oct 2021, 14:49

ER

What is the value of x ? (1) x 3 = 10/x (2) x > 0

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

20 May 2022, 01:30

1

880

by: zhanbo

20 May 2022, 02:09

ER

What is the value of x ? (1) x + 2y + 3z = 6 (2) 3x - 2 + 4y = -6z

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

15 Feb 2023, 04:57

2

1,601

by: gmatophobia

16 Feb 2023, 11:05

ER

What is the value of x ? (1) The variable x is an integer.

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

15 Sep 2023, 01:30

2

1

1,089

by: nasgmatbag

15 Sep 2023, 06:52

ER

What is the value of x ? (1) a^(2x) = b^(x+6) (2) ab = 1

655-705 (Hard) | Exponents

655-705 (Hard) | Exponents hide tags

Bunuel

19 May 2021, 08:30

9

8

1,917

by: rajivcusat2003

06 May 2023, 12:41

ER

What is the value of x ? (1) 6x - 9y = 24 (2) 1.5y = x - 4

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

15 Feb 2023, 04:51

6

5

2,810

by: bumpbot

17 Jun 2024, 06:59

ER

What is the value of x ? (1) 5x^3 = 125x (2) x^2 25

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Feb 2023, 02:25

1

1,171

by: Siddharthb10

12 Feb 2023, 05:41

ER

What is the value of x ? (1) 5x + 5y = 25 (2) 3(x + y) = -3(y - x)

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

15 Feb 2023, 04:54

1

2

2,132

by: yannichc

29 Mar 2023, 02:20

ER

What is the value of x ? (1) 4x^2 4x = -1 (2) 2x^2 + 9x = 5

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

11 May 2022, 08:30

2

1

1,121

by: WheatyPie

11 May 2022, 10:25

ER

What is the value of x ? (1) 3x = 30 (2) x + y = 40

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

15 Oct 2022, 09:00

2

2,608

by: bumpbot

13 Nov 2025, 21:57

ER

What is the value of x ? (1) 2x + 1 = 10 (2) (2x + 1)^2 = 10

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

09 Feb 2022, 11:00

2

1,080

by: Charli08

13 Feb 2022, 09:41

ER

What is the value of x ? (1) 2x -3y = -8 (2) 16 + 4x = 6y

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 Mar 2022, 05:30

3

2

1,903

by: BrentGMATPrepNow

09 Mar 2022, 07:04

ER

What is the value of x ? (1) 13x > 12x (2) x^2 = 9

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

13 Apr 2022, 03:00

3

2,233

by: bumpbot

06 Feb 2024, 02:23