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

183

15

83,550

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of May 2026

1, 2

Bunuel

01 Jan 2026, 05:45

862

24

191,669

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

491,593

by: bb

29 Aug 2025, 13:27

ER

Is z/12 - 9 an integer? (1) (z + 24)/12 is an integer (2) z is a

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

18 Mar 2020, 10:15

1

3

1,900

by: bumpbot

11 Dec 2025, 20:19

ER

If two copying machines work simultaneously at their respective

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

udaymathapati

08 Sep 2010, 11:40

81

4

23,761

by: bumpbot

11 Dec 2025, 13:52

ER

Set A consists of five different numbers; set B consists of

705-805 (Hard) | Statistics and Sets Problems

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

fozzzy

12 Jul 2013, 09:08

67

2

10,994

by: bumpbot

11 Dec 2025, 06:33

ER

How long did it take Carlos to drive nonstop from his home to Atlanta

655-705 (Hard) | Distance and Speed Problems

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

Bunuel

19 Jun 2024, 01:30

7

4

1,738

by: bumpbot

11 Dec 2025, 01:24

ER

Two machines, A and B, were operating for the same number of hours in

555-605 (Medium) | Poor Quality, Work and Rate Problems

555-605 (Medium) | Poor Quality, Work and Rate Problems hide tags

ElenaFerrante

10 Dec 2025, 02:01

4

2

481

by: Bunuel

10 Dec 2025, 05:00

ER

What is the value of the positive integer m ?

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

14 Jan 2015, 02:40

98

9

20,480

by: bumpbot

10 Dec 2025, 04:14

ER

In a certain list of numbers, the greatest number is 100. Is the

655-705 (Hard) | Sequences, Statistics and Sets Problems

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

draditya

06 Oct 2015, 10:22

44

4

10,844

by: bumpbot

09 Dec 2025, 08:29

ER

If X is a positive integer, is X a perfect square?

655-705 (Hard) | Multiples and Factors, Number Properties

655-705 (Hard) | Multiples and Factors, Number Properties hide tags

StringArgs

02 Jul 2022, 23:26

14

4

4,643

by: bumpbot

09 Dec 2025, 07:44

ER

How much was the original price of a car, which was sold for

505-555 (Easy) | Percent and Interest Problems

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

mohan514

08 Sep 2011, 18:54

2

14

5,214

by: bumpbot

09 Dec 2025, 05:16

ER

Set S contains five distinct positive integers, each of which is great

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

03 Apr 2020, 02:46

19

7

4,705

by: bumpbot

08 Dec 2025, 07:38

ER

In Lieberville, 6,000 people subscribe to the Herald or the Clarion.

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

30 Nov 2025, 23:05

4

5

780

by: Dereno

08 Dec 2025, 03:02

ER

On the number line, the distance between point A and point C is 5 and

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

jpr200012

30 Jul 2010, 13:20

77

7

31,102

by: bumpbot

07 Dec 2025, 21:53

ER

A souvenir shop made $ 2,400 in revenue selling postcards. If a large

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

13 Dec 2015, 05:54

11

10

6,012

by: bumpbot

07 Dec 2025, 04:13

ER

a, b, and c are three integers such that a and b are less than 100, an

805+ (Hard) | Number Properties, Sequences

805+ (Hard) | Number Properties, Sequences hide tags

Bunuel

22 Mar 2023, 08:07

60

17

8,238

by: bumpbot

06 Dec 2025, 20:56

ER

Two ships, Maid of the Mist and Queen Elizabeth II, sailed across the

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

22 May 2018, 05:31

12

8

3,138

by: Stella5200

06 Dec 2025, 04:20

ER

Is the median of three numbers x, y, z equal to y?

655-705 (Hard) | Statistics and Sets Problems

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

Navneetsingh

29 Oct 2019, 08:36

19

14

5,428

by: whatsinthename1

06 Dec 2025, 00:24

ER

If positive integer n<=3 and n is the number of times a coin is flippe

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Bunuel

11 Oct 2016, 02:15

11

3

3,601

by: bumpbot

05 Dec 2025, 21:53

ER

At the beginning of the last year, a car dealership had 150 cars in

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

10 Aug 2017, 02:56

10

2

4,101

by: bumpbot

05 Dec 2025, 05:25

ER

What percent of the employees of Company X are technicians?

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

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

Bunuel

06 Dec 2017, 04:11

30

5

12,993

by: Bunuel

02 Dec 2025, 11:29

ER

At a restaurant, a group of friends ordered four main dishes and three

705-805 (Hard) | Min-Max Problems

705-805 (Hard) | Min-Max Problems hide tags

sm1510

07 Dec 2021, 05:57

18

3

4,336

by: luisdicampo

02 Dec 2025, 08:29

ER

HOT Competition 26 Aug/8AM: What is the units digit of n^(p+1), where

705-805 (Hard) | Exponents, Remainders

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

Bunuel

26 Aug 2020, 08:00

23

4

8,745

by: bumpbot

02 Dec 2025, 07:13

ER

The symbol R represents one of the following

Sub 505 (Easy) | Arithmetic, Functions and Custom Characters

Sub 505 (Easy) | Arithmetic, Functions and Custom Characters hide tags

Gnpth

07 Jun 2014, 07:50

5

4

14,199

by: bumpbot

01 Dec 2025, 21:35

ER

Did the population of Country P increase by more than 25% from 2000 to

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

EMPOWERgmatRichC

27 Oct 2024, 10:37

16

4

4,868

by: bumpbot

28 Nov 2025, 09:49

ER

A certain bakery only sells bread. It sells bread at a

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

macjas

27 May 2012, 09:55

8

5

7,743

by: bumpbot

28 Nov 2025, 08:49

ER

If 1/4 of the larger of two numbers is greater than 5 times the smalle

655-705 (Hard) | Algebra, Word Problems

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

Bunuel

02 Nov 2017, 01:41

13

4

7,094

by: Bunuel

28 Nov 2025, 07:30

ER

Yesterday, Jamie parked her car at a certain parking garage.

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

26 Nov 2025, 23:04

4

694

by: Bunuel

28 Nov 2025, 07:17

ER

Any decimal that has only a finite number of non-zero digits is a term

605-655 (Medium) | Arithmetic, Number Properties

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

GGMU

03 Jul 2017, 05:12

15

4

6,295

by: bumpbot

27 Nov 2025, 13:48

ER

In a school election, Joan and Peter were the only candidates for

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

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

Bunuel

10 Jun 2017, 09:50

11

8

5,341

by: bumpbot

27 Nov 2025, 09:45

ER

Train X leaves Los Angeles at 10:00AM and travels East at a constant

655-705 (Hard) | Distance and Speed Problems

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

Bunuel

03 May 2024, 01:30

17

4

2,339

by: Bunuel

27 Nov 2025, 09:34

ER

The number of people required for hosting a certain event is

655-705 (Hard) | Fractions and Ratios, Word Problems

655-705 (Hard) | Fractions and Ratios, Word Problems hide tags

MartyMurray

07 Mar 2026, 09:16

6

1

675

by: MartyMurray

26 Nov 2025, 19:06

ER

What is the standard deviation of set M? (1) Set M contains 17 terms.

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

18 Mar 2022, 01:30

15

2

3,421

by: bumpbot

26 Nov 2025, 08:46

ER

A child had 5 friends at her birthday party. The children opened a box

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

02 May 2025, 00:30

8

6

2,299

by: Bunuel

26 Nov 2025, 06:53

ER

If every term of Set S is defined as S_n=S_{n–1}+3, what is the median

655-705 (Hard) | Statistics and Sets Problems

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

EncounterGMAT

24 Sep 2019, 12:47

2

1,532

by: bumpbot

25 Nov 2025, 11:26

ER

If the elements of set X are a, b, c and d, is the average (arithmetic

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

17 Nov 2023, 07:13

9

4

1,907

by: bumpbot

25 Nov 2025, 10:21

ER

Is x > 0 ? (1) |x – 5| = 7x + 2 (2) |x – 3| = |15x – 3|

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

Bunuel

09 Apr 2021, 14:50

13

2

4,502

by: bumpbot

25 Nov 2025, 05:57

ER

Generally, not every person who has reserved a seat on a commercial

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

AnkurGMAT20

07 Jan 2024, 22:06

27

5

8,718

by: Bunuel

25 Nov 2025, 00:14

ER

Set S = {4, x, 1, 4, 1} Is x the median of Set S?

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

02 Feb 2017, 11:08

6

2,779

by: Bunuel

24 Nov 2025, 22:44

ER

If p is an integer, is p/18 an integer?

555-605 (Medium) | Multiples and Factors, Number Properties

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

gmat1393

09 Jul 2018, 23:25

22

3

5,912

by: bumpbot

24 Nov 2025, 09:27

ER

At a movie theater, the total revenue from selling two types of...

705-805 (Hard) | Statistics and Sets Problems

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

ElenaFerrante

14 Nov 2025, 00:17

2

580

by: 3ammuse

24 Nov 2025, 00:54

ER

Adam received a certain monetary amount in bills having only three den

555-605 (Medium) | Fractions and Ratios, Word Problems

555-605 (Medium) | Fractions and Ratios, Word Problems hide tags

guddo

14 Aug 2024, 08:17

10

2

4,340

by: bumpbot

24 Nov 2025, 00:50

ER

If x and y are non-negative integers, is 4x^4 + 3y even?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

gmatophobia

18 Feb 2023, 11:46

6

3

1,731

by: arushi118

23 Nov 2025, 08:29

ER

Is x a multiple of 12?

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

dreambeliever

01 Oct 2017, 05:01

37

12

10,113

by: bumpbot

23 Nov 2025, 05:13

ER

GMAT Club Olympics 2024 (Day 10): An alloy is made by mixing certain

705-805 (Hard) | Mixture Problems

705-805 (Hard) | Mixture Problems hide tags

Bunuel

19 Jul 2024, 07:00

26

10

7,390

by: bumpbot

23 Nov 2025, 00:21

ER

If c ≠ 1, is ab = a + b? (1) a^2 + b^2 = 0 (2) a = a*c = b

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

17 Feb 2020, 05:13

10

3

5,734

by: MANASH94

22 Nov 2025, 12:42

ER

If 5 different positive integers have 3 as its median, is the average

655-705 (Hard) | Statistics and Sets Problems

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

MathRevolution

01 Dec 2016, 02:03

7

5

3,141

by: bumpbot

22 Nov 2025, 07:12

ER

A monthly magazine receives revenue from exactly 3 sources:

555-605 (Medium) | Percent and Interest Problems

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

guddo

24 Jan 2024, 03:33

15

5

7,003

by: bumpbot

21 Nov 2025, 21:15

ER

In the given figure, O is the centre of the circle and RQ is the diago

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Kritisood

26 Apr 2020, 11:02

8

4

4,628

by: socialsloth

21 Nov 2025, 08:54

ER

If x + y < 2z is x < z ? (1) z < y (2) x < y

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

10 Jan 2024, 12:30

7

2

1,743

by: bumpbot

20 Nov 2025, 20:30

ER

For what duration did Antony speak in a meeting?

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

27 Jan 2020, 02:42

5

4

2,679

by: Bunuel

20 Nov 2025, 04:42

ER

GMAT Club World Cup 2022 (DAY 1): Mbappé has two types of sneakers

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

11 Jul 2022, 08:00

46

5

8,100

by: bumpbot

19 Nov 2025, 23:49