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

79,281

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

188,869

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

488,493

by: bb

29 Aug 2025, 13:27

ER

892,132,24x If x represents the units digit of the number a

555-605 (Medium) | Multiples and Factors

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

atalpanditgmat

14 Jun 2013, 11:39

4

5,379

by: Lastlap2016

26 Apr 2016, 22:56

ER

What is the area of the trapezoid?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

GMATDemiGod

08 Dec 2015, 11:38

4

2,920

by: Vinayprajapati

15 Mar 2016, 22:51

ER

Is a>b?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

LukinoF

09 Nov 2013, 11:30

4

6

3,178

by: bumpbot

12 Dec 2015, 04:08

ER

Is xy = -1 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sugu86

27 May 2014, 00:54

4

7

4,625

by: bumpbot

08 Aug 2015, 10:37

ER

What is the units digit of integer s? (1) The units digit of

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dreambeliever

07 Jun 2011, 08:05

4

18

3,955

by: Harley1980

19 Jun 2015, 12:33

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If r and s are non-negative, what is the ratio of r to s?

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anulfc

14 Jun 2015, 15:40

4

10

4,925

by: IanStewart

16 Jun 2015, 14:54

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If x and y are positive, does (x-2)(y-3)=6?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

19 Jan 2015, 05:46

4

3,403

by: Bunuel

26 Jan 2015, 05:28

ER

In a serving of a breakfast cereal that contains only oats, raisins

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Dec 2014, 09:24

4

8,384

by: g106

23 Dec 2014, 09:42

ER

In the figure above, x, y, and z denote the lengths of the sides of a

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

17 Dec 2014, 07:48

4

6,074

by: beattheheat

20 Dec 2014, 10:48

ER

Barry leaves for the studio

705-805 (Hard) | Distance and Speed Problems

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

gaurav245

02 Jul 2014, 04:49

4

5

3,242

by: Bunuel

02 Jul 2014, 05:07

ER

What is area of square LMNO ?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Gnpth

23 Jun 2014, 05:33

4

2

7,259

by: Bunuel

23 Jun 2014, 05:41

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

3,863

by: KarishmaB

11 Jun 2014, 01:42

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

4,833

by: kundankshrivastava

19 May 2014, 23:42

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

6,734

by: Bunuel

15 May 2014, 01:11

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

4,119

by: jlgdr

27 Feb 2014, 09:29

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

3,872

by: thefibonacci

26 Feb 2014, 14:15

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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

5,214

by: stne

13 Feb 2014, 07:15

ER

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

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conty911

25 Apr 2012, 22:35

4

3

6,561

by: Bunuel

30 Oct 2013, 07:59

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

4,194

by: Bunuel

11 Oct 2013, 06:46

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

4,994

by: Bunuel

08 Sep 2013, 06:04

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

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atalpanditgmat

18 Jun 2013, 22:16

4

3

7,798

by: mattce

20 Jun 2013, 09:03

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

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SpencerH

24 Apr 2013, 21:05

4

3

3,220

by: doe007

24 Apr 2013, 22:33

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

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guerrero25

13 Apr 2013, 12:00

4

5

3,795

by: mau5

15 Apr 2013, 11:09

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

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siddharthamaridi

14 Nov 2012, 02:30

4

19,661

by: VeritasPrepRon

21 Mar 2013, 10:51

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

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nkimidi7y

05 Sep 2012, 12:30

4

15

5,313

by: AbhiJ

31 Oct 2012, 12:56

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

5,017

by: Bunuel

21 Jun 2012, 12:25

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

3,138

by: fluke

28 Aug 2011, 13:15

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

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paam0101

12 Jul 2010, 14:33

4

4,337

by: vannbj

15 Jul 2010, 12:24

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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

6,736

by: GulfTube

14 May 2026, 06:05

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

2,188

by: bumpbot

07 May 2026, 22:05

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

2,394

by: bumpbot

06 May 2026, 19:33

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

452

by: Gmat860sanskar

04 May 2026, 09:31

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

304

by: Bunuel

04 May 2026, 03:02

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

6,236

by: bumpbot

03 May 2026, 13:59

ER

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

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

13 May 2024, 01:30

5

2

1,261

by: bumpbot

03 May 2026, 02:40

ER

At a community center, a total of 31 people enrolled in at least one

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

27 Apr 2026, 19:00

5

247

by: Bunuel

01 May 2026, 02:15

ER

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

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

27 Apr 2026, 19:00

5

4

247

by: Bunuel

01 May 2026, 01:30

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

2,098

by: bumpbot

30 Apr 2026, 02:50

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

2,797

by: bumpbot

30 Apr 2026, 02:29

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

1,640

by: bumpbot

30 Apr 2026, 02:18

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

2,094

by: Bunuel

29 Apr 2026, 22:10

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

1,762

by: bumpbot

29 Apr 2026, 07:36

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

2,793

by: GrandGG

28 Apr 2026, 05:53

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

2,392

by: bumpbot

27 Apr 2026, 09:20

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

277

by: Bunuel

26 Apr 2026, 02:30

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

262

by: Bunuel

26 Apr 2026, 01:00

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

2,467

by: bumpbot

24 Apr 2026, 12:29

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

481

by: BPranav7

24 Apr 2026, 09:34

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

2,022

by: bumpbot

21 Apr 2026, 05:06

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

283

by: Bunuel

21 Apr 2026, 04:00