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

79,567

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

858

24

188,959

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

488,639

by: bb

29 Aug 2025, 13:27

ER

What is the value of 5x^2 + 4x - 1 ? (1) x(x + 2) = 0 (2) x = 0

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

23 Sep 2018, 21:52

14

6

13,780

by: Bunuel

17 May 2026, 04:29

ER

What is the sum of the squares of the three consecutive terms of a geo

705-805 (Hard) | Algebra, Sequences

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

Bunuel

13 May 2020, 07:58

8

4

2,996

by: bumpbot

11 May 2026, 05:16

ER

For any integers x and y, min(x, y) and max(x, y) denote the minimum a

605-655 (Medium) | Algebra +2 tags

605-655 (Medium) | Algebra, Functions and Custom Characters, Min-Max Problems hide tags

saswata4s

22 Mar 2018, 19:33

46

10

7,825

by: bumpbot

11 May 2026, 01:09

ER

If k is an integer and x(x k) = k + 1, what is the value of x?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Bunuel

01 Sep 2015, 22:51

187

14

30,854

by: impatientdude

29 Apr 2026, 01:25

ER

If 50 mL of an x% alcohol solution is mixed with 30 mL of a y% alcohol

655-705 (Hard) | Algebra, Mixture Problems

655-705 (Hard) | Algebra, Mixture Problems hide tags

Bunuel

26 Nov 2019, 02:03

13

4

4,410

by: bumpbot

20 Apr 2026, 05:15

What is the value of a + b + 1?

805+ (Hard) | Algebra, Math Related

805+ (Hard) | Algebra, Math Related hide tags

NathanMasky

24 Feb 2025, 14:57

10

2

1,050

by: bumpbot

19 Apr 2026, 19:38

ER

[y] denotes the greatest integer less than or equal to y. Is d < 1?

555-605 (Medium) | Algebra, Functions and Custom Characters

555-605 (Medium) | Algebra, Functions and Custom Characters hide tags

Bunuel

20 Feb 2014, 01:14

366

14

48,618

by: bumpbot

16 Apr 2026, 09:43

The nth term of an increasing sequence S is given by Sn = Sn-1 + Sn-2

805+ (Hard) | Algebra, Sequences

805+ (Hard) | Algebra, Sequences hide tags

niteshwaghray

01 Jun 2017, 22:35

43

3

7,696

by: bumpbot

16 Apr 2026, 02:25

ER

For integers a, b, and c, a/(b-c) = 1. What is the value of (b-c)/b?

505-555 (Easy) | Algebra +2 tags

505-555 (Easy) | Algebra, Multiples and Factors, Number Properties hide tags

Bunuel

06 Oct 2017, 05:30

33

5

16,332

by: esseeligendi

13 Apr 2026, 19:37

ER

The monthly performance bonus of a salesman depends on the number of u

605-655 (Medium) | Algebra, Word Problems

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

niteshwaghray

23 May 2017, 01:01

5

2

3,111

by: bumpbot

07 Apr 2026, 12:01

ER

Of the shares of stock owned by a certain investor, 30

505-555 (Easy) | Algebra, Word Problems

505-555 (Easy) | Algebra, Word Problems hide tags

BabySmurf

25 Jan 2014, 02:16

190

7

55,396

by: bumpbot

28 Mar 2026, 07:47

ER

An object was thrown upward from the top of a building. The object tra

705-805 (Hard) | Algebra, Word Problems

705-805 (Hard) | Algebra, Word Problems hide tags

yrozenblum

29 Oct 2023, 13:17

122

13

15,736

by: kartickdey

21 Mar 2026, 03:35

ER

How many more men than women are in the room?

Sub 505 (Easy) | Algebra, Word Problems

Sub 505 (Easy) | Algebra, Word Problems hide tags

Bunuel

16 May 2018, 06:47

11

9

11,106

by: bumpbot

17 Mar 2026, 11:15

ER

What is the absolute difference between the cubes of two

655-705 (Hard) | Algebra +2 tags

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

1, 2

Smita04

15 Mar 2012, 23:23

88

20

13,897

by: vallequalle

17 Mar 2026, 07:14

If m and n are positive integers and mn = k, is m + n = k + 1?

555-605 (Medium) | Algebra, Number Properties

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

carbazzy

07 Aug 2019, 15:34

66

8

18,589

by: totaltestprepNick

11 Mar 2026, 10:59

ER

Tajs Taxis determines the fare for each trip by adding a fl

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

kevincan

10 Mar 2026, 09:05

2

3

370

by: kevincan

10 Mar 2026, 01:24

ER

If p and q are non-zero integers, Is p = q? (1) p + q = pq (2) pq = 4

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Kritisood

23 Jun 2020, 00:39

12

2

5,322

by: aditya khanna

07 Mar 2026, 14:34

ER

If x ≠ 0 and x^2z – 4xy + y = 0, what is the value of z ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

23 May 2020, 08:28

77

8

11,530

by: Utkarsha20

07 Mar 2026, 09:51

ER

Martha bought several pencils. If each pencil was either a

555-605 (Medium) | Algebra, Word Problems

555-605 (Medium) | Algebra, Word Problems hide tags

1, 2

Bull78

01 Sep 2010, 10:02

390

26

64,096

by: totaltestprepNick

03 Mar 2026, 13:50

ER

A bookstore that sells used books sells each of its paperbac

555-605 (Medium) | Algebra, Word Problems

555-605 (Medium) | Algebra, Word Problems hide tags

Bunuel

23 Feb 2014, 07:48

70

10

37,359

by: totaltestprepNick

02 Mar 2026, 08:11

ER

If x^2 + y^2 = 29, what is the value of (x - y)^2 ? (1) xy = 10 (2) x

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Jayanth2689

19 Sep 2010, 06:48

155

9

81,359

by: totaltestprepNick

01 Mar 2026, 14:11

ER

If x is an integer, is 9^x + 9^(-x) = b ? (1) 3^x + 3^(-x) = (b + 2)

555-605 (Medium) | Algebra, Exponents

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

1, 2

Bunuel

01 Oct 2012, 05:20

243

27

55,192

by: totaltestprepNick

01 Mar 2026, 14:10

ER

If 0 < x < y, what is the value of (x + y)^2/(x- y)^2?

555-605 (Medium) | Algebra, Exponents

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

Val1986

12 Aug 2022, 06:23

185

8

71,165

by: totaltestprepNick

01 Mar 2026, 14:10

ER

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

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

21 Jan 2014, 04:05

18

6

14,758

by: totaltestprepNick

01 Mar 2026, 14:08

ER

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

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

15 Jan 2014, 02:50

23

10

22,037

by: totaltestprepNick

01 Mar 2026, 13:45

ER

If t ≠ 0, is r greater than zero?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

20 Feb 2014, 01:19

56

7

19,061

by: totaltestprepNick

28 Feb 2026, 14:49

ER

What is the value of integer n?

505-555 (Easy) | Algebra, Exponents

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

Walkabout

03 Dec 2012, 03:22

45

4

22,833

by: totaltestprepNick

28 Feb 2026, 14:46

ER

Is xy > 5? (1) 1 <= x <= 3 and 2 <= y <= 4 (2) x + y = 5

505-555 (Easy) | Algebra, Inequalities

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

Bunuel

23 Jan 2014, 03:26

53

12

26,510

by: totaltestprepNick

28 Feb 2026, 09:43

ER

Is rst = 1 ? (1) rs = 1 (2) st = 1

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

1, 2

loki

02 Feb 2022, 00:53

204

28

37,612

by: totaltestprepNick

28 Feb 2026, 09:16

ER

What is the value of x/(yz) ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

financeguy25

21 Sep 2019, 17:14

36

12

22,150

by: totaltestprepNick

28 Feb 2026, 09:16

ER

What is the value of (2t + t - x)/(t - x)?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Walkabout

01 Jun 2021, 03:29

195

17

48,110

by: totaltestprepNick

28 Feb 2026, 09:15

ER

If rs ≠ 0, is 1/r + 1/s = 4 ? (1) r + s = 4rs (2) r = s

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

04 Mar 2014, 00:23

39

10

16,541

by: totaltestprepNick

28 Feb 2026, 09:14

ER

What is the value of xy? (1) x + y = 10 (2) x - y = 6

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

06 Feb 2014, 01:37

6

26,191

by: totaltestprepNick

28 Feb 2026, 09:12

ER

What is the value of r/2 + s/2 ? (1) (r + s)/2 = 5 (2) r + s = 10

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

24 Dec 2013, 03:45

10

5

21,475

by: totaltestprepNick

28 Feb 2026, 09:12

ER

What is the value of w + q ? (1) 3w=3-3q (2) 5w +5q = 5

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

02 Jul 2012, 02:33

19

7

38,666

by: totaltestprepNick

28 Feb 2026, 09:11

ER

Is p = q? (1) p + q = 2 (2) pq > 0

555-605 (Medium) | Algebra, Inequalities

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

Bunuel

26 Sep 2022, 11:03

1

4

2,273

by: iamjatinagrawal

28 Feb 2026, 03:38

ER

If n + k = m, what is the value of k ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

13 Aug 2012, 07:10

30

6

26,358

by: totaltestprepNick

26 Feb 2026, 13:08

ER

In the expression above, if xn#0, what is the value of S?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Walkabout

18 Dec 2012, 08:13

31

5

22,000

by: totaltestprepNick

26 Feb 2026, 13:06

ER

If 2x(5n) = t, whatis the value of t?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

29 Jan 2014, 02:13

8

5

12,046

by: totaltestprepNick

26 Feb 2026, 13:04

ER

If abc ≠ 0 is (a/b)/c = a/(b/c)

505-555 (Easy) | Algebra, Fractions and Ratios

505-555 (Easy) | Algebra, Fractions and Ratios hide tags

Bunuel

21 Jan 2014, 04:10

137

13

36,466

by: totaltestprepNick

26 Feb 2026, 13:02

ER

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

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

07 Jan 2014, 05:19

16

4

13,466

by: totaltestprepNick

26 Feb 2026, 13:01

ER

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

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

31 Dec 2013, 07:23

3

5

13,609

by: totaltestprepNick

26 Feb 2026, 12:58

ER

Steve works at an apple orchard and is paid by the bushel

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Warlock007

03 Jul 2011, 11:57

44

7

10,703

by: Vivek1707

24 Feb 2026, 12:33

ER

If x is an integer, is x|x|<2^x ?

Sub 505 (Easy) | Absolute Values +2 tags

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

1, 2

cucrose

17 Jan 2007, 16:27

140

26

57,213

by: poojaarora1818

24 Feb 2026, 11:32

ER

If n is a positive integer, is the value of b - a at least twice the

555-605 (Medium) | Algebra, Exponents

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

1, 2

Walkabout

18 Dec 2012, 09:00

320

24

44,665

by: totaltestprepNick

24 Feb 2026, 09:43

ER

What is the value of y ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

KGump

07 Oct 2017, 08:50

7

8

3,901

by: iamjatinagrawal

24 Feb 2026, 09:05

ER

If n is an integer between 2 and 100 and if n is also the square of an

605-655 (Medium) | Algebra, Number Properties

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

Bunuel

23 Feb 2014, 07:51

161

11

36,831

by: totaltestprepNick

23 Feb 2026, 16:12

What is the value of the two-digit integer x ? (1) The sum of the two

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

GMATD11

28 Sep 2018, 05:03

8

7

18,085

by: totaltestprepNick

23 Feb 2026, 13:48

ER

If y is a positive integer, what is

705-805 (Hard) | Algebra, Exponents

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

EgmatQuantExpert

24 May 2017, 11:55

13

8

5,423

by: Rickooreoisb

08 Feb 2026, 21:00

From 2018 to 2019, Devin's investment stock increased by p%. From 2019

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Amity007

30 Jan 2026, 08:32

6

690

by: tryorcry

07 Feb 2026, 00:08