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

79,697

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

858

24

188,975

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

488,673

by: bb

29 Aug 2025, 13:27

ER

A stationery store received a shipment of notebooks. When the manager

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

29 Mar 2026, 19:00

5

3

372

by: Bunuel

02 Apr 2026, 01:15

ER

Each correctional facility in a certain state has the same number of

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

kevincan

24 Feb 2026, 10:29

5

2

416

by: MartyMurray

05 Apr 2026, 21:35

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

3,113

by: bumpbot

07 Apr 2026, 12:01

ER

A home-goods store sold several identical floor lamps in a clearance

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

02 Apr 2026, 19:00

5

3

399

by: Bunuel

09 Apr 2026, 01:45

ER

Any term in the sequence (except for the first and last terms) is the

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

Bunuel

25 Mar 2024, 01:30

5

2

1,281

by: BongBideshini

13 Apr 2026, 18:13

Rakesh Bought 3 Shares of Power Infra. One on 31st April'24, one on 23

605-655 (Medium) | Math Related, Word Problems

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

Sketchitesh

02 Apr 2025, 09:46

5

3

1,241

by: BongBideshini

13 Apr 2026, 22:04

ER

A local arts center hosted a weekend illustration workshop.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

09 Apr 2026, 19:00

5

3

400

by: Bunuel

16 Apr 2026, 03:30

ER

The greatest of M integers is 400. The least of N integers is 475. Wha

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

13 Apr 2018, 01:19

5

4

1,757

by: bumpbot

16 Apr 2026, 10:56

ER

Felixity, a musician, never sings sad rock songs. Of the songs on Feli

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

16 Jun 2021, 05:00

5

6

2,451

by: Bunuel

19 Apr 2026, 22:09

ER

Cedar Court and Maple Court have the same number of occupied apartment

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

12 Apr 2026, 19:00

5

6

351

by: DropletMaverick

21 Apr 2026, 01:12

ER

Before the start of the fall service cycle, the city transit authority

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

14 Apr 2026, 19:00

5

4

285

by: Bunuel

21 Apr 2026, 04:00

ER

Was the average (arithmetic mean) score that Steve got per subject gre

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

01 Nov 2018, 00:12

5

2

2,028

by: bumpbot

21 Apr 2026, 05:06

ER

Elena, Marco, and Sofia each had one folder to copy to an external

655-705 (Hard) | Non-Math Related, Word Problems

655-705 (Hard) | Non-Math Related, Word Problems hide tags

Bunuel

12 Apr 2026, 19:00

5

11

489

by: BPranav7

24 Apr 2026, 09:34

ER

If a number n is pulled out of a hat at random

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

HKD1710

15 Jan 2017, 08:54

5

2

2,473

by: bumpbot

24 Apr 2026, 12:29

ER

At a shipping center, every package in a certain batch is either

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

Bunuel

19 Apr 2026, 19:00

5

3

269

by: Bunuel

26 Apr 2026, 01:00

ER

At a community arts festival, each of the 72 volunteers was assigned

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

19 Apr 2026, 19:00

5

3

297

by: Bunuel

26 Apr 2026, 02:30

ER

A shipping company has two departments, one for standard shipping and

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

20 Nov 2023, 02:30

5

2

2,400

by: bumpbot

27 Apr 2026, 09:20

ER

What is the sum of the terms in a certain sequence of consecutive inte

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

26 May 2021, 02:01

5

3

2,809

by: GrandGG

28 Apr 2026, 05:53

ER

The sequence a_1, a_2, a_3, a_4, . . ., consists of positive integers,

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

Russ19

15 May 2021, 05:03

5

3

1,782

by: bumpbot

29 Apr 2026, 07:36

ER

For all numbers p and q (where p 0 ), the operation $ is defined as

605-655 (Medium) | Functions and Custom Characters

605-655 (Medium) | Functions and Custom Characters hide tags

Bunuel

24 Jun 2022, 09:30

5

3

2,105

by: Bunuel

29 Apr 2026, 22:10

ER

If x_n = a^{(2n-1)}, where n is a positive integer then find sum of th

805+ (Hard) | Functions and Custom Characters +2 tags

805+ (Hard) | Functions and Custom Characters, Number Properties, Sequences hide tags

GMATinsight

27 May 2021, 08:45

5

3

1,644

by: bumpbot

30 Apr 2026, 02:18

ER

A, B, C and D are in Arithmetic Progression, what is the num

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

JayPatadiya

04 Aug 2019, 07:36

5

4

2,809

by: bumpbot

30 Apr 2026, 02:29

ER

In a certain international contest the winners received only gold and

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

13 May 2021, 00:15

5

4

2,110

by: bumpbot

30 Apr 2026, 02:50

ER

At a museum, all visitors in a certain tour group were either students

655-705 (Hard) | Overlapping Sets

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Bunuel

27 Apr 2026, 19:00

5

4

274

by: Bunuel

01 May 2026, 01:30

ER

If an item is purchased x percent less than its retail price

555-605 (Medium) | Percent and Interest Problems

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Bunuel

13 May 2024, 01:30

5

2

1,272

by: bumpbot

03 May 2026, 02:40

ER

All of the seats in a lecture hall are arranged in 15 rows.

505-555 (Easy) | Sequences, Word Problems

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

fozzzy

17 Sep 2013, 01:40

5

4

6,252

by: bumpbot

03 May 2026, 13:59

ER

At an animal shelter, 12 animals were available for adoption.

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Bunuel

30 Apr 2026, 19:00

5

6

309

by: Bunuel

04 May 2026, 03:02

ER -1

Fairview department store bought a number of regular-

805+ (Hard) | Percent and Interest Problems, Word Problems

805+ (Hard) | Percent and Interest Problems, Word Problems hide tags

kevincan

20 Mar 2026, 14:25

5

8

466

by: Gmat860sanskar

04 May 2026, 09:31

ER

Every game of chess that Artem played this month resulted in a win, a

505-555 (Easy) | Fractions and Ratios, Word Problems

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

Bunuel

23 Mar 2022, 07:30

5

4

2,402

by: bumpbot

06 May 2026, 19:33

ER

The twelve numbers shown represent, the ages, in years, of the twelve

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

10 May 2026, 12:42

5

4

6,473

by: bumpbot

07 May 2026, 08:11

ER

List A is split into two sub-lists B and C. All the elements of list B

605-655 (Medium) | Statistics and Sets Problems

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

RenB

11 Aug 2023, 21:58

5

2

2,197

by: bumpbot

07 May 2026, 22:05

ER

A certain ice cream factory makes two flavors of ice cream: chocolate

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

14 May 2026, 06:10

5

6

6,752

by: GulfTube

14 May 2026, 06:05

ER

In each of five taste tests, each of 51 participants chose either Bran

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

21 Sep 2021, 01:30

5

3

2,198

by: bumpbot

15 May 2026, 03:15

ER

If 8 < k < 8, is k < 2 ?

Poor Quality

Poor Quality hide tags

paam0101

12 Jul 2010, 14:33

4

4,338

by: vannbj

15 Jul 2010, 12:24

In the xy plane, what is the slope of line perpendicular to

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

DeeptiM

28 Aug 2011, 12:33

4

2

3,139

by: fluke

28 Aug 2011, 13:15

ER

For positive integer x, y, and z, is y > z?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

banksy

17 Mar 2011, 14:42

4

1

5,020

by: Bunuel

21 Jun 2012, 12:25

ER

What is the value of x^2+ 5x +4?

Poor Quality

Poor Quality hide tags

nkimidi7y

05 Sep 2012, 12:30

4

15

5,317

by: AbhiJ

31 Oct 2012, 12:56

ER

Is P the youngest of P,Q ,R and S?

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Poor Quality hide tags

siddharthamaridi

14 Nov 2012, 02:30

4

19,665

by: VeritasPrepRon

21 Mar 2013, 10:51

Is j-k > 1/j - 1/k ?

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guerrero25

13 Apr 2013, 12:00

4

5

3,798

by: mau5

15 Apr 2013, 11:09

An IT Department employs 8 people at an average salary of $8

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Poor Quality hide tags

SpencerH

24 Apr 2013, 21:05

4

3

3,225

by: doe007

24 Apr 2013, 22:33

A runner starts running on a circular path of radius 'r'

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Poor Quality hide tags

atalpanditgmat

18 Jun 2013, 22:16

4

3

7,801

by: mattce

20 Jun 2013, 09:03

ER

If x and y are both integers, which is larger, x^x or y^y?

655-705 (Hard) | Exponents, Inequalities

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

AnkitK

23 Jul 2011, 02:25

4

7

4,998

by: Bunuel

08 Sep 2013, 06:04

ER

If a and b are positive, is (a^(-1) + b^(-1))^(-1) less than

655-705 (Hard) | Exponents, Inequalities

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

barakhaiev

11 Oct 2013, 06:44

4

3

4,198

by: Bunuel

11 Oct 2013, 06:46

ER

Let denote a mathematical operation. Is it true that x y

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conty911

25 Apr 2012, 22:35

4

3

6,563

by: Bunuel

30 Oct 2013, 07:59

ER

Is n^2 + 2n an integer? (1) n^3 + 3n is an integer. (2) 2n

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conty911

26 Apr 2012, 03:05

4

19

5,218

by: stne

13 Feb 2014, 07:15

ER

What is my age (expressed as a positive integer)? Although

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

EvaJager

10 Oct 2012, 12:25

4

12

3,879

by: thefibonacci

26 Feb 2014, 14:15

ER

At a certain restaurant, burgers, fries, and soft drinks are

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

gmatpapa

28 May 2013, 05:45

4

6

4,121

by: jlgdr

27 Feb 2014, 09:29

ER

Which is larger, the sum of the roots of equation A or the

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

dreambeliever

30 Jul 2011, 15:05

4

7

6,737

by: Bunuel

15 May 2014, 01:11

ER

A certain 13m ladder is resting against a wall of height X

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rathoreaditya81

05 Dec 2009, 11:51

4

16

4,838

by: kundankshrivastava

19 May 2014, 23:42

ER

The net value of a certain stock increased at a constant

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

AtifS

05 Mar 2010, 23:58

4

3,867

by: KarishmaB

11 Jun 2014, 01:42