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

79,071

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

857

24

188,728

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

488,287

by: bb

29 Aug 2025, 13:27

ER

If m and n are positive integers. What is the units digit of

655-705 (Hard) | Exponents

655-705 (Hard) | Exponents hide tags

gepetow

23 Jul 2013, 15:08

9

4

4,100

by: bumpbot

15 Sep 2016, 03:52

ER

In a cookie-eating contest, there are 200 cookies provided

Poor Quality

Poor Quality hide tags

guygmat

18 Jun 2011, 21:03

9

17

10,065

by: bumpbot

13 Sep 2016, 06:29

ER

Is |x| < 1 ?

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Poor Quality hide tags

gmatgambler

06 Jan 2014, 03:12

9

5

4,318

by: Bunuel

30 Aug 2016, 10:18

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Car X leaves Town A at 2 p.m. and drives toward Town B at a constant

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

pranit

05 Jul 2015, 12:08

9

10

6,179

by: Bunuel

05 Jul 2015, 12:10

ER

In the rectangular coordinate system above, if OB < BC then is the are

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

TARGET730

09 Feb 2015, 03:34

9

7

4,181

by: chetan2u

16 Feb 2015, 18:58

ER

If x + y is an integer, is y an integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

sset009

26 Jul 2008, 10:30

9

3

3,814

by: Bunuel

05 Dec 2014, 04:22

ER

If x and y are non-zero integers, is x = y ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

iaratul

01 Jul 2014, 04:06

9

4

3,082

by: iaratul

01 Jul 2014, 06:43

ER

What is the remainder when n is divided by 15?

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Poor Quality hide tags

mithun2vrs

27 Apr 2012, 11:03

9

5

9,898

by: Bunuel

12 Jun 2012, 04:56

ER

Is x > 0 (1) x < x^2 (2) x^2 < x^3

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

rxs0005

24 Jan 2011, 06:42

9

4

5,431

by: subhashghosh

18 Mar 2011, 00:09

Set A and B are 2 sets of numbers. A has a standard

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

seekmba

23 Sep 2010, 18:39

9

7

5,655

by: Raths

16 Oct 2010, 07:19

ER

Boats X and Y are moving towards each other in still water. They recei

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

06 May 2020, 22:39

8

6

3,569

by: bumpbot

06 May 2026, 23:16

ER

40% of the dogs at a certain animal shelter have been microchipped. Ho

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

18 Jul 2019, 08:00

8

5

4,584

by: bumpbot

01 May 2026, 03:46

ER

A contractor was hired to build a house for $132,000, consisting of

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

ExpertsGlobal5

04 Mar 2026, 20:00

8

3

542

by: Siddharth17

29 Apr 2026, 07:54

ER

10 children have ordered a total of 17 hamburgers, and each child has

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

14 Jan 2021, 01:15

8

9

2,865

by: Tanpok

25 Apr 2026, 04:04

ER

At the Butterfly Scout Cookie Chow Down, each girl was given

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

fozzzy

08 Oct 2013, 05:50

8

5

5,645

by: bumpbot

23 Apr 2026, 21:25

ER

An inspection agency follows these guidelines for newly laid pipelines

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

01 Apr 2026, 19:00

8

3

484

by: PlacidSoyabean

22 Apr 2026, 02:30

ER

A store bought Q windows at $150 per window and W shelves at $75 per

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

24 Jun 2016, 03:11

8

7

3,299

by: bumpbot

14 Apr 2026, 13:13

ER

Exactly one straight road connects Albertville and Bowton, which are

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

Bunuel

25 Mar 2025, 00:30

8

4

1,248

by: bumpbot

14 Apr 2026, 07:49

ER

A manufacturer produces items at a fixed monthly cost of $2000 plus a

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

03 Jun 2020, 04:31

8

5

2,776

by: bumpbot

07 Apr 2026, 13:05

ER

A campus bookstore bought 60 notebooks for a total of 540 euros.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

30 Mar 2026, 19:00

8

3

336

by: Bunuel

02 Apr 2026, 04:45

ER

Is the total price of the items in Andrea's shopping cart less than $2

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

19 Jun 2018, 02:32

8

6

4,661

by: bumpbot

31 Mar 2026, 06:10

ER

Two animal shelters, Cedar Shelter and Harbor Shelter, each house only

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

17 Mar 2026, 19:00

8

4

533

by: Bunuel

26 Mar 2026, 01:00

ER

Jack used to save 20% of his monthly salary. His salary increased by

605-655 (Medium) | Percent and Interest Problems

605-655 (Medium) | Percent and Interest Problems hide tags

ExpertsGlobal5

08 Feb 2026, 20:00

8

6

849

by: lucas898

20 Mar 2026, 04:29

ER

The temperature of a place at noon on a certain day is 25% higher than

555-605 (Medium) | Percent and Interest Problems, Word Problems

555-605 (Medium) | Percent and Interest Problems, Word Problems hide tags

EgmatQuantExpert

22 Jan 2017, 02:10

8

5

4,256

by: Gmat860sanskar

18 Mar 2026, 23:19

ER

Sets S and T contain an equal number of elements, all of which are pos

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

Bunuel

16 Jun 2021, 02:00

8

4

1,806

by: bumpbot

16 Mar 2026, 03:32

ER

The distance between City A and City B is 120 miles. A freight train

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

Bunuel

22 Jul 2024, 01:30

8

3

1,834

by: Edskore

14 Mar 2026, 09:33

For integers m and k, is the remainder when N = k(m+7) (m+8) divided b

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

RenB

08 Oct 2023, 19:35

8

2

1,679

by: aditya khanna

08 Mar 2026, 01:16

ER

Katrina has a collection of N fiction books and 40 non-fiction books.

805+ (Hard) | Statistics and Sets Problems

805+ (Hard) | Statistics and Sets Problems hide tags

Bunuel

01 Nov 2024, 01:30

8

4

1,711

by: suntprovident

07 Mar 2026, 08:48

ER

Set A contains infinite number of integers. Are all the integers in Se

705-805 (Hard) | Number Properties, Statistics and Sets Problems

705-805 (Hard) | Number Properties, Statistics and Sets Problems hide tags

GMATBusters

13 Oct 2018, 10:39

8

11

2,423

by: Shwetabh54

06 Mar 2026, 05:55

What is the 14th term of the sequence?

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

Evo23

27 Apr 2020, 05:27

8

2

2,462

by: bumpbot

04 Mar 2026, 08:30

ER

If r, s, and t are different odd numbers greater than 1, what is the m

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

BillyZ

31 Mar 2017, 07:20

8

3

2,110

by: bumpbot

03 Mar 2026, 02:31

ER

If x, y, and z are positive integers, then what is the value of the mo

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

Bunuel

12 Dec 2019, 00:06

8

6

2,864

by: bumpbot

27 Feb 2026, 08:34

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

12,029

by: totaltestprepNick

26 Feb 2026, 13:04

ER

What is the median of the numbers 4, 5, 6, 7, 9, and x?

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

Bunuel

12 May 2021, 19:00

8

7

6,712

by: Bunuel

26 Feb 2026, 04:14

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

18,068

by: totaltestprepNick

23 Feb 2026, 13:48

ER

If the average (arithmetic mean) of 7 numbers is 21, what is the stand

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

MathRevolution

15 Aug 2017, 01:30

8

4

3,176

by: egmat

19 Feb 2026, 06:33

ER

At a certain store, each soft drink costs d dollars, and each cookie

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

kevincan

14 Feb 2026, 01:21

8

4

536

by: kevincan

15 Feb 2026, 23:15

ER

If Mike's class had 10 more people on it, it would have twice as many

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

20 Aug 2019, 06:40

8

16

3,195

by: egmat

10 Feb 2026, 02:58

ER

Is the median monthly salary of 15 randomly selected employees of

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

ExpertsGlobal5

27 Jan 2026, 22:00

8

3

590

by: ExpertsGlobal5

01 Feb 2026, 07:30

ER

If a bottle is to be selected at random from a certain

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

banksy

26 Feb 2011, 17:42

8

2

12,382

by: bumpbot

28 Jan 2026, 13:21

ER

Pete is arranging layer upon layer of lines of brick to build a wall.

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

mlinsky2828

26 Jan 2026, 20:57

8

6

933

by: MartyMurray

27 Jan 2026, 10:00

ER

A total of 240 processed tuna cans were delivered to a sales outlet in

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

25 Nov 2019, 02:53

8

4

2,950

by: Shwetabh54

25 Jan 2026, 09:16

ER

If all of the employees of Company K who worked there last January are

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

rahulms

27 Jul 2015, 14:43

8

5

12,214

by: bumpbot

24 Jan 2026, 12:21

ER

A pumpkin patch contains x pumpkins that weigh 10 pounds each and y pu

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

02 May 2026, 10:09

8

4

4,068

by: bumpbot

19 Jan 2026, 03:18

ER

Mani, Sani and Karna have x, y and z number of chocolates respectively

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

amanvermagmat

28 Jun 2018, 11:04

8

4

2,642

by: bumpbot

18 Jan 2026, 00:05

ER

If a^b = 289, what is the value of a-b? (1) b is not equal to 1

705-805 (Hard) | Exponents

705-805 (Hard) | Exponents hide tags

santorasantu

24 Sep 2018, 14:20

8

2

1,377

by: bumpbot

17 Jan 2026, 04:08

ER

w, x, y and z are all integers. Is wxyz even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

AbdurRakib

05 Jun 2016, 14:23

8

2

5,400

by: bumpbot

14 Jan 2026, 03:39

ER

P, Q, R, S, X, Y are real numbers such that P < X < Q and R < Y < S.

705-805 (Hard) | Algebra, Inequalities

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

amanvermagmat

21 Jun 2018, 21:59

8

3

1,724

by: bumpbot

13 Jan 2026, 23:57

ER

Is the standard deviation of Set A greater than or equal to the standa

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

11 Apr 2018, 21:23

8

9

4,145

by: bumpbot

13 Jan 2026, 13:02

ER

Are negative integers s and t both less than t? 1) s < r+t 2)[m][fract

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

GMATBusters

21 May 2018, 09:04

8

9

2,133

by: bumpbot

13 Jan 2026, 00:50