GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Guides & Resources

Guides & Resources hide tags

Bunuel

25 Oct 2022, 08:11

189

15

89,054

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of June 2026

Guides & Resources

Guides & Resources hide tags

1, 2

Bunuel

01 Jan 2026, 05:45

872

24

194,250

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

Guides & Resources

Guides & Resources hide tags

bb

23 Aug 2026, 13:03

1.6k

1

496,246

by: bb

23 Aug 2026, 13:01

ER

Data Sufficiency Butler: 2 Questions Every Day

Guides & Resources

Guides & Resources hide tags

1, 2...5, 6

Bunuel

03 Sep 2026, 22:16

474

108

167,879

by: Bunuel

03 Sep 2026, 22:16

Two empty tanks of equal size, X and Y, were being filled with water

705-805 (Hard) | Work and Rate Problems

705-805 (Hard) | Work and Rate Problems hide tags

Bunuel

11 Dec 2024, 01:30

14

3

2,769

by: hov805

04 Sep 2026, 13:23

ER

A movie theater increased the ticket price for evening shows by 10%

605-655 (Medium) | Percent and Interest Problems, Word Problems

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

guddo

30 May 2024, 12:29

83

11

12,214

by: bumpbot

04 Sep 2026, 12:52

A delivery truck covers a certain distance from Chicago to Detroit in

555-605 (Medium) | Distance and Speed Problems

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

laborumpossimus

04 Sep 2026, 12:43

0

9

by: laborumpossimus

04 Sep 2026, 12:43

ER

Did the population of Country S increase by less than 20 percent from

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

27 Oct 2022, 01:30

1

2

1,051

by: laborumpossimus

04 Sep 2026, 12:39

ER

The events A, B, and C are independent. What is the probability that

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

goodyear2013

09 Feb 2026, 23:43

57

6

26,191

by: Stormik1

04 Sep 2026, 12:08

ER

What percentage of students in the class know Spanish?

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

benejo

05 Apr 2018, 04:36

5

4

2,125

by: Stormik1

04 Sep 2026, 11:48

ER

Last year, in Crossia, 25% of all babies were delivered in a private

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

ExpertsGlobal5

08 Jan 2026, 22:00

5

3

668

by: Stormik1

04 Sep 2026, 10:20

ER

HOT Competition 3 Sep/8AM: Two cyclists start moving simultaneously fr

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

Bunuel

03 Sep 2020, 08:00

66

9

9,708

by: Bunuel

04 Sep 2026, 10:15

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

6

8

2,615

by: Bunuel

04 Sep 2026, 09:45

ER

Last year, if Elena spent a total of $720 on newspapers, magazines

505-555 (Easy) | Percent and Interest Problems

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

Bunuel

28 May 2026, 11:50

61

8

22,770

by: bumpbot

04 Sep 2026, 08:47

Is |s - t| > |s| - |t|? (1) s > t (2) st < 0

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

Bunuel

29 Sep 2023, 08:15

2

1,309

by: Subliminal

04 Sep 2026, 08:45

If a train traveled a route of 1,000 kilometers

605-655 (Medium) | Distance and Speed Problems

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

bhargavhhhhhhhh

12 Apr 2025, 00:19

12

3

1,925

by: Bunuel

04 Sep 2026, 07:16

ER

Jane and Thomas each have more than 700 stamps. What is the ratio of

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

24 Apr 2024, 01:30

14

2

2,286

by: bumpbot

04 Sep 2026, 03:53

ER

Around the World in 80 Questions (Day 4): Of the retailers surveyed

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

20 Jul 2023, 08:00

35

13

7,729

by: SwiftMonk

04 Sep 2026, 03:33

Carlos spent 70% of his initial money to buy a property in Spain and

555-605 (Medium) | Percent and Interest Problems

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

laborumpossimus

03 Sep 2026, 13:54

1

49

by: zaturn

04 Sep 2026, 03:19

ER

Peder currently works 40 hours a week. If his hourly wage went up by

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

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

Bunuel

03 Sep 2026, 22:15

2

67

by: TommyLeo

04 Sep 2026, 00:17

ER

Three robots, Q, R, and L, which eject water independently and

555-605 (Medium) | Work and Rate Problems

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

Bunuel

03 Sep 2026, 22:14

1

61

by: icandoit4u

03 Sep 2026, 23:46

ER

Max (x,y) is defined as the maximum of x and y, and min(x,y)

505-555 (Easy) | Functions and Custom Characters, Min-Max Problems

505-555 (Easy) | Functions and Custom Characters, Min-Max Problems hide tags

GMATD11

28 Feb 2012, 19:52

60

6

102,814

by: bumpbot

03 Sep 2026, 14:19

What were the gross revenues from ticket sales for the movie Mr. and

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

02 Sep 2026, 22:25

1

97

by: LucidGhost

03 Sep 2026, 10:45

ER -1

If Car X followed Car Y across a certain bridge that is 1/2 mile long,

705-805 (Hard) | Word Problems, Work and Rate Problems

705-805 (Hard) | Word Problems, Work and Rate Problems hide tags

GMATBusters

11 Apr 2020, 18:56

13

16

4,880

by: tan2026

03 Sep 2026, 10:29

ER

What is the ratio of the amount, by weight, of Metal A to Metal B in A

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

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

guddo

30 May 2024, 11:02

27

13

7,061

by: bumpbot

03 Sep 2026, 10:08

ER

At a certain hotel, every room has air conditioning or cable TV

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

BrentGMATPrepNow

20 Sep 2016, 13:54

17

7

4,866

by: Bunuel

03 Sep 2026, 09:27

A bag of 100 jellybeans contains cherry, licorice, and orange

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

02 Sep 2026, 22:25

2

1

94

by: SS990

03 Sep 2026, 08:39

ER

An initial investment of $10,000 was deposited in a bank account one

505-555 (Easy) | Percent and Interest Problems

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

Bunuel

23 May 2020, 04:45

38

5

11,872

by: bumpbot

03 Sep 2026, 08:13

ER

Given that the mean of Set A is 10, what is the range of two

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

smartass666

05 Nov 2012, 21:09

67

10

20,330

by: bumpbot

03 Sep 2026, 06:45

ER

A certain company sells only cars and trucks, and the average selling

655-705 (Hard) | Statistics and Sets Problems

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

BillyZ

21 Feb 2017, 18:23

11

3

3,767

by: bumpbot

02 Sep 2026, 22:52

ER

Yesterday each coat in a store was offered on sale price.

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Starburst10

17 Mar 2024, 12:59

46

11

11,123

by: bumpbot

02 Sep 2026, 20:23

ER

The cost of a certain school trip was $16 for each child and $24 for

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

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

Bunuel

02 Aug 2023, 05:00

69

9

20,701

by: MarkGMATMentor

02 Sep 2026, 18:26

ER

In a class of 30 students, Emma secured the third rank among the girls

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

24 Jan 2025, 01:30

8

4

1,649

by: MarkGMATMentor

02 Sep 2026, 17:26

ER

In a certain lab, 60 percent of the researchers have advanced degrees

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

01 Sep 2026, 19:00

2

4

168

by: MarkGMATMentor

02 Sep 2026, 16:45

ER

If the average (arithmetic mean) of four different numbers is 30, how

605-655 (Medium) | Statistics and Sets Problems

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

kook44

06 Jun 2019, 02:45

220

15

79,232

by: doitrahul

02 Sep 2026, 12:03

ER

A certain pizzeria has more than fifty types of pizzas on its menu.

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

GMATCoachBen

06 Feb 2024, 19:21

119

10

15,435

by: Bunuel

02 Sep 2026, 11:45

ER

If set S = {7, y, 12, 8, x, 9}, is x + y less than 18?

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

14 Oct 2014, 06:11

27

7

9,956

by: bumpbot

02 Sep 2026, 09:36

ER

Rachel throws a cocktail party for her friends. At the party, she

Sub 505 (Easy) | Fractions and Ratios, Word Problems

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

Bunuel

26 Aug 2026, 19:00

4

242

by: SS990

02 Sep 2026, 09:27

ER

A few men and a few women are seated in a row. The number of men is on

705-805 (Hard) | Combinations

705-805 (Hard) | Combinations hide tags

Bunuel

16 Jul 2017, 23:32

74

12

9,242

by: ohhno

02 Sep 2026, 09:15

ER

How many songs did the musician record? (1) Of the songs the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

01 Sep 2026, 19:00

2

3

156

by: Parinpatel

02 Sep 2026, 09:12

University has published the list of subjects in two columns

555-605 (Medium) | Combinations

555-605 (Medium) | Combinations hide tags

shriwasakshat

01 Jun 2025, 03:01

6

3

999

by: ohhno

02 Sep 2026, 09:04

ER

GMAT Club Olympics 2025 (Day 1): In a store, 40 items are arranged on

555-605 (Medium) | Statistics and Sets Problems, Word Problems

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

1, 2...7, 8

Bunuel

30 Jun 2025, 08:00

137

157

6,391

by: ohhno

02 Sep 2026, 08:56

ER

There are x children and y chairs arranged in a circle in a room where

555-605 (Medium) | Combinations

555-605 (Medium) | Combinations hide tags

Bunuel

29 Mar 2021, 00:21

63

12

11,154

by: bumpbot

02 Sep 2026, 08:19

ER

LCM of two natural numbers x and y is 161, and x is greater than 1.

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

nick1816

25 Jun 2019, 01:48

11

7

2,285

by: Bunuel

02 Sep 2026, 05:42

ER

Prof Liu gave the same quiz to the students in her morning class and

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

[email protected]

23 Jan 2024, 06:52

272

19

51,347

by: bumpbot

02 Sep 2026, 04:03

A golf club that sold only individual and family memberships charged

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

31 Aug 2026, 19:00

1

2

182

by: TheAdmissionHub

02 Sep 2026, 02:14

ER

A real estate agent sold 6 houses in Junction City and 3 houses

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

guddo

24 Jan 2024, 01:14

49

9

11,218

by: Himanshu_Dhiman

01 Sep 2026, 23:35

ER

The values of x and y vary with the value of z

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

NoHalfMeasures

19 Dec 2015, 15:22

128

10

15,111

by: Rishab2409

01 Sep 2026, 23:16

ER

At a certain school, is the number of biology students greater than

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

20 Aug 2026, 19:00

7

5

442

by: officiisnobis

01 Sep 2026, 14:07

ER

Today Dave drove from home to work at twice his regular speed and arri

655-705 (Hard) | Distance and Speed Problems

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

BrentGMATPrepNow

16 Aug 2022, 07:05

11

3

2,333

by: Bunuel

01 Sep 2026, 12:10

ER

If x ≠ 0, is |x| < 1 ? (1) x^2 < 1 (2) |x| < 1/x

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

1, 2

boomtangboy

09 Jun 2019, 22:05

480

31

54,804

by: egmat

01 Sep 2026, 12:02

ER

A stationery shop sells only notebooks and planners. Each notebook

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

29 Jun 2026, 19:00

6

5

490

by: egmat

01 Sep 2026, 11:27

An electronics distributor receives $75 for every DVD player he ships

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

31 Aug 2026, 19:00

1

141

by: counterclash1

01 Sep 2026, 10:28