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

179

15

80,062

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

189,062

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

488,804

by: bb

29 Aug 2025, 13:27

ER

Mom is 24 years older than her son. How old is the mother now?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

02 Jul 2024, 01:30

8

3

2,022

by: Anugmat740

02 Jul 2024, 22:44

ER

If s = (x + y)^2 and t = (x - y)^2, what is the value of 2^s/2^t ?

505-555 (Easy) | Algebra, Exponents

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

ThomasR22

15 Sep 2020, 07:30

16

3

6,959

by: bumpbot

02 Jul 2024, 03:43

ER

What is the value of n? (1) n(n - 1)(n - 2 ) = 0 (2) n^2 + n - 6 = 0

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

16 May 2018, 06:51

6

3

4,984

by: bumpbot

01 Jul 2024, 11:55

ER

A car starts from one end of a highway and travels towards the other

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

Bunuel

01 Jul 2024, 01:30

7

1

1,276

by: Nidzo

01 Jul 2024, 05:34

ER

If x ≠ y, what is the value of x + y?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

flower07

13 Dec 2013, 06:49

6

2

2,837

by: bumpbot

28 Jun 2024, 15:02

ER

If a and b are integers, is a + b + 3 an odd integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

26 Jun 2017, 02:51

79

8

33,315

by: bumpbot

26 Jun 2024, 03:38

A and B are running in opposite direction on a circular track

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

GMATbuster92

20 Jul 2018, 11:55

1

5

3,989

by: bumpbot

25 Jun 2024, 03:23

ER

Development planners detemined the number of new housing units needed

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

erikvm

23 Jun 2015, 11:49

45

5

16,554

by: bumpbot

25 Jun 2024, 02:24

ER

What was the percent increase in the earnings per share of company

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

Bunuel

20 Jun 2024, 01:30

5

3

1,652

by: HarishD

20 Jun 2024, 10:46

ER

In the xy-plane, the line with equation ax + by + c = 0, where abc ≠ 0

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

alltimeacheiver

11 Feb 2011, 03:22

65

4

21,992

by: bumpbot

15 Jun 2024, 11:52

ER

If y = ax + b, where a and b are constants, what is the value of y whe

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

17 Oct 2020, 00:35

6

2

8,665

by: bumpbot

15 Jun 2024, 09:29

ER

What is the value of p?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

TheUltimateWinner

16 Nov 2016, 14:47

7

2,943

by: bumpbot

12 Jun 2024, 18:36

ER

In the equation y2 + ay - 24 = 0, a is a constant and y is a

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

fozzzy

01 Jun 2013, 03:28

4

2

3,455

by: bumpbot

12 Jun 2024, 18:32

ER

What is the value of (4x-y)*1/(3y)?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

macjas

27 May 2012, 09:13

3

4,732

by: bumpbot

10 Jun 2024, 22:13

ER

What is the value of a?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

HustleHarder

31 Aug 2010, 14:46

4

7

4,370

by: bumpbot

10 Jun 2024, 22:06

ER

If 3a + 2b – 4 = a – b, what is the value of b ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Gnpth

23 Jul 2014, 10:48

4

6

9,312

by: bumpbot

10 Jun 2024, 22:01

ER

2x – y =

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

vikasp99

06 Mar 2017, 05:08

2

10

3,428

by: bumpbot

09 Jun 2024, 19:35

ER

What is the value of x^2 - 4y^2?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

derekgmat

08 Nov 2012, 03:13

5

4

5,074

by: bumpbot

09 Jun 2024, 19:32

ER

If yz not equal 0, what is the value of 12x/(yz)?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

NYCgirl15

24 Apr 2015, 02:31

3

4

4,065

by: bumpbot

09 Jun 2024, 18:49

ER

A box contains only white balls, red balls and green balls. What is th

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

30 Mar 2015, 05:44

18

9

13,909

by: bumpbot

06 Jun 2024, 20:35

ER

Jacks school has a hallway with 100 lockers numbered 1100. How many

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

05 Jun 2024, 01:30

4

3

992

by: PranavVyas

05 Jun 2024, 08:22

ER

The only contents of a bag of candy are 100 jelly beans and 10

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

03 Jun 2024, 01:30

3

2

1,088

by: Purnank

03 Jun 2024, 02:22

ER

What is the standard deviation of the set A? 1) Mean of the set A is

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

GMATinsight

22 May 2017, 08:14

6

3

3,681

by: sayan640

02 Jun 2024, 22:10

ER

What is the Median of the set A? 1) Mean of the set A is 10 2) Range

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

GMATinsight

22 May 2017, 08:19

3

5

2,342

by: sayan640

02 Jun 2024, 18:28

ER

In ΔABC above, what is the length of segment AB? (1) AC = √2 (2) AB

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

16 Feb 2022, 03:30

2

3

3,586

by: bumpbot

24 May 2024, 11:22

What is the median of 5 integers? 1) 3 numbers of them are the same va

505-555 (Easy) | Min-Max Problems

505-555 (Easy) | Min-Max Problems hide tags

skidstorm

19 Mar 2018, 17:35

2

3

3,492

by: bumpbot

22 May 2024, 21:37

ER

Is a/b < 0? (1) a^2/b^3 > 0 (2) ab^4 < 0

505-555 (Easy) | Exponents, Inequalities

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

siddhans

13 Feb 2022, 02:39

47

11

27,585

by: bumpbot

19 May 2024, 20:27

ER

How many of the 90 laptop computers sold in January by online retailer

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

23 Feb 2022, 04:00

4

2

2,085

by: bumpbot

16 May 2024, 23:48

In the graph above ,if divisions K and L togather

505-555 (Easy) | Graphs and Illustrations

505-555 (Easy) | Graphs and Illustrations hide tags

guerrero25

31 Oct 2013, 02:44

20

4

10,021

by: ADisHere

15 May 2024, 13:27

ER

In a sequence k, each term after the second term is the sum

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

NoHalfMeasures

11 Aug 2014, 03:29

32

10

15,212

by: bumpbot

12 May 2024, 11:54

ER

If x and y are integer, is y < 0?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Supermaverick

06 Jul 2017, 11:30

1

2

1,962

by: bumpbot

11 May 2024, 14:37

ER

Pamela and Joe invested some money at annual simple interest

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

GMATBaumgartner

17 Oct 2012, 02:08

27

8

11,044

by: bumpbot

09 May 2024, 03:59

ER

The total income of Mr. Teng in the years 2003, 2004, and 2005 was $36

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

08 May 2024, 01:30

1

1,151

by: Nidzo

08 May 2024, 04:51

ER

In triangle ABC, side AB is 5 inches and side BC is 7 inches. What is

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Jackal

05 Nov 2014, 07:53

11

4

5,816

by: bumpbot

06 May 2024, 17:59

ER

If y is an integer, is y^3 divisible by 8? (1) y is even. (2) y^3 - y

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

Bunuel

06 May 2020, 03:05

19

7

7,183

by: bumpbot

30 Apr 2024, 10:07

ER

Of the students in a certain class, 40 learn Spanish, 30 learn French,

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

30 Apr 2024, 01:30

2

1

1,514

by: thanhtra01011

30 Apr 2024, 03:19

ER

When a positive integer n is divided by 3, what is the remainder?

505-555 (Easy) | Remainders

505-555 (Easy) | Remainders hide tags

MathRevolution

03 Aug 2018, 02:06

10

3

7,665

by: bumpbot

29 Apr 2024, 22:28

ER

If n is a nonzero integer, is xn < 1?

505-555 (Easy) | Inequalities, Number Properties

505-555 (Easy) | Inequalities, Number Properties hide tags

lastshot

20 Aug 2014, 20:56

25

8

16,058

by: bumpbot

29 Apr 2024, 10:24

ER

The sequence of four numbers a1, a2 , a3 and a4 is such that

505-555 (Easy) | Arithmetic, Sequences

505-555 (Easy) | Arithmetic, Sequences hide tags

pritishmohan

18 May 2013, 01:25

69

10

19,408

by: bumpbot

29 Apr 2024, 08:42

ER

Starting in 1991, the budget deficit of a certain country was expected

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

26 Apr 2024, 01:30

3

1

957

by: GMATinsight

26 Apr 2024, 02:57

ER

Is |x| > |y| ? (1) x^2 > y^2 (2) x > y

505-555 (Easy) | Absolute Values, Inequalities

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

xALIx

08 May 2022, 02:27

16

10

8,254

by: bumpbot

25 Apr 2024, 18:11

ER

If x and z are positive integers, is x^2 - z^2 odd?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Skywalker18

15 Aug 2017, 13:04

11

6

4,379

by: bumpbot

25 Apr 2024, 01:34

ER

Is x + y odd? (1) 2y + x is even (2) 2x + y is even

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

stonecold

21 Nov 2016, 02:22

6

5

4,208

by: bumpbot

24 Apr 2024, 23:12

ER

Is the positive integer P a multiple of 11

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

stonecold

08 Apr 2016, 00:21

3

7

4,502

by: bumpbot

21 Apr 2024, 23:27

ER

A retailer buys t-shirts from a wholesaler in lots of 25 t-shirts each

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

19 Apr 2024, 01:30

2

1,077

by: GMATinsight

20 Apr 2024, 05:54

ER

Is x a multiple of 72?

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

MHIKER

30 Oct 2018, 15:23

11

3

4,370

by: bumpbot

20 Apr 2024, 04:39

ER

What is the mean of the exams taken by a group of students?

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

Bunuel

05 Feb 2015, 09:13

14

6

6,948

by: bumpbot

19 Apr 2024, 01:01

ER

There are only three kinds of books on a bookshelf, science book

505-555 (Easy) | Fractions and Ratios

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

Bunuel

18 Apr 2024, 01:30

4

1

1,394

by: Nidzo

18 Apr 2024, 04:41

ER

What is the probability of selecting a white ball from a jar at random

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

15 Sep 2021, 04:00

2

4,863

by: bumpbot

12 Apr 2024, 06:20

ER

How many sides does polygon P have? (1) All sides of P have equal len

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Nanobotstv

18 May 2018, 05:13

32

6

10,597

by: bumpbot

11 Apr 2024, 20:58