Data Sufficiency (DS)

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

496,409

by: bb

23 Aug 2026, 13:01

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

523

16 Apr 2026, 03:30

ER

A bakery packed 150 dessert boxes in two batches. Each box contained

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

08 Apr 2026, 19:00

5

3

538

16 Apr 2026, 02:45

The nth term of an increasing sequence S is given by Sn = Sn-1 + Sn-2

805+ (Hard) | Algebra, Sequences

805+ (Hard) | Algebra, Sequences hide tags

niteshwaghray

01 Jun 2017, 22:35

43

3

7,864

16 Apr 2026, 02:25

ER

At a print shop, premium brochures cost $14 each and standard flyers

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

08 Apr 2026, 19:00

11

4

688

16 Apr 2026, 01:45

ER

A bartender mixes drink A with drink B. If drink A contains 24 percent

505-555 (Easy) | Mixture Problems

505-555 (Easy) | Mixture Problems hide tags

Bunuel

01 May 2026, 11:05

15

7

8,627

by: NamDuong

15 Apr 2026, 23:59

ER

Henry purchased 3 items during a sale. He received a 20 percent discou

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

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

1, 2

docabuzar

11 Jun 2019, 03:53

363

30

63,969

15 Apr 2026, 13:47

A team of 2 is to be selected from a group of 5. if the number of male

605-655 (Medium) | Combinations, Probability

605-655 (Medium) | Combinations, Probability hide tags

Bunuel

19 Jan 2022, 06:00

26

3

5,063

15 Apr 2026, 13:44

ER

At a history museum, the price of each regular admission ticket sold

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

GMAT695

01 Oct 2024, 02:20

40

5

8,362

by: GMAT1034

15 Apr 2026, 12:10

ER

Math Revolution and GMAT Club Contest! There is a sequence An when n

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

1, 2

Bunuel

05 Dec 2015, 08:52

48

37

9,656

15 Apr 2026, 12:06

ER

If sequence x1, x2, x3, ..., xn is such that xn+1 is 5 more than xn fo

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

13 Apr 2022, 01:30

9

2

3,993

15 Apr 2026, 08:12

ER

Martha bought an armchair and a coffee table at an action and sold bot

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

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

nonameee

10 Jan 2012, 04:05

287

14

51,765

15 Apr 2026, 07:48

ER

A list contains 7 positive integers

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

bambinobirbante

14 Dec 2022, 02:13

7

3

4,098

15 Apr 2026, 07:46

ER

On his trip from Alba to Benton, Julio drove the first x miles at an

605-655 (Medium) | Distance and Speed Problems

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

sandalphon

21 Oct 2019, 02:24

109

19

26,442

by: KarishmaB

15 Apr 2026, 07:33

ER

There is a sequence, 4(10^n), 4(10^(n-1)), ..., 4(10^(n-m)), for posit

805+ (Hard) | Number Properties, Sequences

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

Bunuel

20 Dec 2015, 06:37

70

12

13,981

15 Apr 2026, 06:06

ER

A cafe tracked the number of online orders over three consecutive days

805+ (Hard) | Percent and Interest Problems

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

Bunuel

07 Apr 2026, 19:00

10

3

488

15 Apr 2026, 02:00

ER

For a production run, the number of inspection hours required, h

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

07 Apr 2026, 19:00

6

4

510

15 Apr 2026, 01:15

ER

When David drove from his home to his parents' home, was his average

605-655 (Medium) | Arithmetic, Distance and Speed Problems

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

Laracbo

27 Feb 2024, 16:52

145

12

17,214

14 Apr 2026, 21:55

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

3,401

14 Apr 2026, 13:13

ER

Exactly one straight road connects Albertville and Bowton, which are

655-705 (Hard) | Distance and Speed Problems

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

Bunuel

25 Mar 2025, 00:30

9

4

1,428

14 Apr 2026, 07:49

ER

If $10,000 invested for one year at x percent simple annual interest y

Sub 505 (Easy) | Percent and Interest Problems

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

Confide

16 Feb 2024, 09:58

4

2

3,793

by: Fucio

14 Apr 2026, 07:48

ER

For a cause, 30 people donated $10, $20, or $30.

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Gmat750aspirant

02 Apr 2025, 10:13

10

6

2,284

by: Adit_

14 Apr 2026, 05:59

ER

Alan, Beth, and Chad all needed to use a printerwhose toner cartridge

655-705 (Hard) | Non-Math Related

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

SharukhB

12 Apr 2026, 05:13

14

6

980

14 Apr 2026, 03:28

ER

A box has 10 balls, either red or blue. If two balls are to be drawn s

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

siddharthkapoor

05 Sep 2020, 22:24

15

6

4,859

14 Apr 2026, 03:20

ER

What is the average (arithmetic mean) of eleven consecutive

555-605 (Medium) | Statistics and Sets Problems

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

1, 2

zz0vlb

23 Apr 2010, 18:05

478

26

93,316

by: ankushsambare

14 Apr 2026, 03:12

ER

Laser diodes and micro-controllers are among the components used to ma

805+ (Hard) | Percent and Interest Problems

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

Vishh13

05 Oct 2020, 11:25

14

5

2,408

14 Apr 2026, 03:05

ER

A man, while driving on a highway at uniform speed, observes his car’s

705-805 (Hard) | Distance and Speed Problems

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

Bunuel

06 Jul 2017, 02:36

15

6

4,168

14 Apr 2026, 02:46

ER

For a certain set of n numbers, where n > 1, is the average (arithmeti

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

26 Feb 2014, 02:24

138

14

31,487

by: ankushsambare

14 Apr 2026, 02:16

ER

Today, Laura invested a total of $12,500 at two banks. She invested

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

06 Apr 2026, 19:00

4

3

530

14 Apr 2026, 02:15

ER

A delivery fleet currently has 108 vehicles of two types: vans and

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

06 Apr 2026, 19:00

2

3

484

14 Apr 2026, 01:45

ER

In a certain sequence, when you subtract the Mth element from the (M-1

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

02 Apr 2018, 02:17

39

7

10,025

14 Apr 2026, 01:23

ER

A person is to be selected at random from the group T of people. What

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

Bunuel

30 Sep 2024, 01:30

19

5

2,720

14 Apr 2026, 00:55

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

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

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

Sketchitesh

02 Apr 2025, 09:46

7

3

2,018

by: BongBideshini

13 Apr 2026, 22:04

ER

For integers a, b, and c, a/(b-c) = 1. What is the value of (b-c)/b?

505-555 (Easy) | Algebra +2 tags

505-555 (Easy) | Algebra, Multiples and Factors, Number Properties hide tags

Bunuel

06 Oct 2017, 05:30

34

5

16,911

by: esseeligendi

13 Apr 2026, 19:37

ER

A small School has three foreign language classes, one in French, one

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

AbdurRakib

30 Jun 2016, 14:49

373

19

65,576

by: FrozenDragon

13 Apr 2026, 12:46

ER

Set X and set Y have 10 numbers each. Is standard deviation of set X

605-655 (Medium) | Statistics and Sets Problems

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

hkotadiya

05 Oct 2017, 07:40

34

9

14,310

13 Apr 2026, 12:03

ER

If a pencil is selected at random from a desk drawer, what

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

sunita123

14 Jul 2014, 14:23

26

11

11,888

13 Apr 2026, 11:32

ER

If the closing price of stock X on the first trading day last year

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

nick13

01 Nov 2023, 15:20

72

10

12,336

13 Apr 2026, 04:43

ER

At the Northgate distribution center, a sorting line can run in one of

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

05 Apr 2026, 19:00

6

5

463

13 Apr 2026, 02:30

ER

During an overnight run, a server handled two types of jobs

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

05 Apr 2026, 19:00

3

2

490

13 Apr 2026, 01:15

ER

Is the standard deviation of p, q, and r equal to the standard deviati

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

gmatophobia

07 May 2023, 15:40

4

2

1,937

12 Apr 2026, 11:14

ER

If a child is randomly selected from Columbus elementary sch

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

LinaNY

12 Oct 2013, 12:30

39

9

12,761

12 Apr 2026, 04:30

ER

A team is composed of exactly 4 executives and 3 associates. How many

655-705 (Hard) | Combinations

655-705 (Hard) | Combinations hide tags

Bunuel

04 Apr 2025, 00:30

12

3

1,743

11 Apr 2026, 23:13

ER

The average of a certain set of numbers is 20 and its

805+ (Hard) | Statistics and Sets Problems

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

earnit

09 Apr 2018, 04:39

44

8

10,584

11 Apr 2026, 04:58

ER

A certain company currently has how many employees?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

justtapas

02 Nov 2012, 23:22

28

4

20,278

11 Apr 2026, 03:15

Andrew and Clair each purchased a book, and the list prices of their

505-555 (Easy) | Percent and Interest Problems

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

guddo

24 Jan 2024, 03:59

10

2

4,197

11 Apr 2026, 03:01

ER

Of the students who eat in a certain cafeteria, each student either

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

1, 2

dimitri92

04 Jun 2010, 00:29

638

26

129,070

by: AnkitNandwani1

11 Apr 2026, 01:57

ER

The table above shows the cancellation fee schedule that a travel agen

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

14 Feb 2014, 02:01

125

15

28,379

by: Harsh_

11 Apr 2026, 01:33

ER

K is a set of integers such that if the integer r is in K,

505-555 (Easy) | Statistics and Sets Problems

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

dkverma

04 Aug 2012, 03:39

99

19

30,171

10 Apr 2026, 22:53

ER

In any twenty-four-hour period, a certain faulty clock gains anywhere

805+ (Hard) | Non-Math Related, Word Problems

805+ (Hard) | Non-Math Related, Word Problems hide tags

p456

03 Nov 2023, 06:21

191

17

16,642

by: FrozenDragon

10 Apr 2026, 11:12

4 numbers: w, 8, y, and z are in arithmetic progression, where w < 8 <

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Snehaaaaa

30 Mar 2022, 05:54

7

2

1,695