Data Sufficiency (DS)

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

490,907

by: bb

29 Aug 2025, 13:27

ER

At a certain company, each employee has either an office or a cubicle.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

06 Sep 2024, 01:30

5

3

2,212

06 Mar 2026, 12:36

ER

25 Hardest DS Questions (2025-2026)

655-705 (Hard) | Multiples and Factors

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

bb

04 Mar 2026, 23:43

4

0

478

by: bb

04 Mar 2026, 23:43

What is the 14th term of the sequence?

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

Evo23

27 Apr 2020, 05:27

8

2

2,532

04 Mar 2026, 08:30

ER

In what year did company A begin to operate?

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

11 Dec 2017, 01:37

6

2

3,316

04 Mar 2026, 06:02

ER

If each of the attendees in certain conference will shake hands with

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

16 Aug 2024, 01:30

7

3

2,301

04 Mar 2026, 05:58

A pagoda “P” is situated on an apex of a hill at a height of

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Asifpirlo

02 Aug 2013, 11:48

7

10

3,653

03 Mar 2026, 05:05

ER

Emma and Deep are painting a wall. Emma started painting the wall

655-705 (Hard) | Work and Rate Problems

655-705 (Hard) | Work and Rate Problems hide tags

Bunuel

08 Oct 2024, 01:30

20

4

2,381

by: agrasan

01 Mar 2026, 04:18

ER

If x, y, and z are three integers such that 0 x y z, is the range of x

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

10 Apr 2018, 06:54

1

3

2,570

by: arushi118

01 Mar 2026, 00:05

ER

How many families in the town of Windsor have exactly one car?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

18 Jan 2026, 13:15

2

1

349

by: vaibhavjoshi1202

28 Feb 2026, 22:36

Is y < (x + z)/2 ? (1) y - x < z - y (2) z - y > (z - x)/2

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

nick_sun

20 Oct 2019, 03:21

18

6

16,932

by: totaltestprepNick

28 Feb 2026, 09:20

In a packet of M&M chocolates, there are only two colored M&M chocolat

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Amity007

21 Jan 2026, 17:45

2

449

28 Feb 2026, 05:29

ER

Is p = q? (1) p + q = 2 (2) pq > 0

555-605 (Medium) | Algebra, Inequalities

555-605 (Medium) | Algebra, Inequalities hide tags

Bunuel

26 Sep 2022, 11:03

1

4

2,304

by: iamjatinagrawal

28 Feb 2026, 03:38

ER

If x, y, and z are positive integers, then what is the value of the mo

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

12 Dec 2019, 00:06

8

6

2,919

27 Feb 2026, 08:34

ER

Last year, among the 200 companies in Growthia

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

kevincan

26 Feb 2026, 13:42

4

1

512

26 Feb 2026, 13:39

ER

A technology reviewer ranks three tablets on a scale

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

kevincan

27 Feb 2026, 04:31

5

1

499

26 Feb 2026, 13:36

In 1999, Company X's gross profit was what percent of its

555-605 (Medium) | Percent and Interest Problems

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

sm176811

14 Apr 2006, 13:49

69

6

27,996

by: totaltestprepNick

25 Feb 2026, 16:00

What is the value of the two-digit integer x ? (1) The sum of the two

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

GMATD11

28 Sep 2018, 05:03

8

7

18,145

by: totaltestprepNick

23 Feb 2026, 13:48

ER

In every week, the Shopping mall bookstore's salesman is paid a fixed

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

09 Oct 2024, 01:30

5

4

1,413

22 Feb 2026, 01:07

ER

In 2001, the price per share of Stock X increased by k percent. In 200

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

11 Jun 2024, 01:30

4

3

1,587

20 Feb 2026, 13:15

ER

At a local cinema, adult tickets cost $9 each and childrens tickets

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

kevincan

18 Feb 2026, 05:41

3

482

20 Feb 2026, 10:36

ER

In a pet store survey about dog and cat owners, it was found that 18%

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

06 Feb 2024, 02:30

4

3

2,181

by: vallequalle

19 Feb 2026, 12:05

ER

Ed has some fish, and the combined weight of all the fish is 100 pound

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

21 May 2017, 06:12

12

4

3,187

by: Vivek1707

19 Feb 2026, 05:33

ER

A train always travels at one of two speeds: 160 km/hr in rural areas

705-805 (Hard) | Distance and Speed Problems

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

kevincan

19 Feb 2026, 00:17

7

1

521

19 Feb 2026, 02:10

Sarah is in a room with 6 other children. If the other child

705-805 (Hard) | Statistics and Sets Problems

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

venmic

07 Sep 2012, 21:36

100

8

18,879

18 Feb 2026, 08:38

ER

A box contains 62 balls. How many white balls are there in the box?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

28 Jul 2021, 06:30

3

2

2,231

by: iamjatinagrawal

16 Feb 2026, 11:29

Two classes, Year 5 and Year 6, contributed money equally for donation

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Amity007

30 Jan 2026, 08:33

5

2

603

by: Vivek1707

15 Feb 2026, 06:12

ER

Greg's long - distance plan charges him $.5 for first 4 mins of a call

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

29 Sep 2019, 21:00

10

8

4,464

15 Feb 2026, 05:40

Out of 80 people, some drink tea, some drink coffee, while some drink

705-805 (Hard) | Overlapping Sets, Word Problems

705-805 (Hard) | Overlapping Sets, Word Problems hide tags

amanvermagmat

28 Apr 2018, 23:14

23

7

7,261

15 Feb 2026, 05:29

ER

Do at least 20 percent of Amity school students aspire to do masters

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

Bunuel

20 Jan 2026, 03:45

4

633

by: iamjatinagrawal

15 Feb 2026, 01:06

Harry, a farmer, decided to divide all his possessions among his...

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Ujjwalk31

14 Feb 2026, 05:32

3

1

469

14 Feb 2026, 06:04

ER

A family has only one kid. The father says “after „n‟ years, my age wi

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

25 Sep 2019, 05:36

3

2

5,967

13 Feb 2026, 05:50

ER

Jason must drive from his home to his office by one of two possible ro

655-705 (Hard) | Distance and Speed Problems

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

Bunuel

26 Apr 2017, 08:11

20

5

4,331

by: egmat

12 Feb 2026, 21:20

ER

A small radio station was jointly owned by two partners unti

705-805 (Hard) | Min-Max Problems

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

blueseas

26 Aug 2013, 09:48

50

3

12,075

11 Feb 2026, 00:35

ER -1

Larry is one of 9 product managers in a certain division of

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

kevincan

16 Jan 2026, 09:13

4

3

462

by: Vivek1707

10 Feb 2026, 11:40

ER

In a carnival game, players try to toss marbles in to a milk jug. One

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

31 Jul 2018, 21:44

13

10

5,479

10 Feb 2026, 11:34

ER

If the probability that a certain event occur is p, what is the value

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

19 Apr 2023, 01:30

3

4

3,688

10 Feb 2026, 10:25

ER

If two products are both increased by 7%, how much more will Product A

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

08 Dec 2021, 03:30

2

1,423

09 Feb 2026, 22:27

ER

At a particular university with 200 students 30% receive loans and 40%

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

03 Dec 2025, 23:27

2

688

by: Utkarsha20

09 Feb 2026, 12:56

ER

Each of the 50 students participating in a workshop is either an under

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Sallyzodiac

03 May 2016, 08:04

211

14

39,978

07 Feb 2026, 04:30

From 2018 to 2019, Devin's investment stock increased by p%. From 2019

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Amity007

30 Jan 2026, 08:32

6

734

by: tryorcry

07 Feb 2026, 00:08

ER

The median age of seven children in group A was 13. The median age of

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

12 Nov 2024, 01:30

14

5

2,602

by: nikfield

06 Feb 2026, 05:59

ER

Mrs. K is paid at a reduced rate for contracts completed

705-805 (Hard) | Arithmetic +2 tags

705-805 (Hard) | Arithmetic, Inequalities, Percent and Interest Problems hide tags

AbhayPrasanna

05 Feb 2026, 10:50

28

16

9,603

05 Feb 2026, 08:56

ER

The original price of a certain computer has increased. The increase

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

25 Jan 2026, 05:45

4

2

427

by: Utkarsha20

04 Feb 2026, 11:17

ER

Peter traveled from home to school and returned along the same route

805+ (Hard) | Distance and Speed Problems

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

Bunuel

04 Nov 2019, 02:33

17

3

8,054

by: Saviooo

04 Feb 2026, 10:56

ER

A class consists of boys and girls only. On a final exam in History

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

25 May 2022, 09:00

12

5

2,748

03 Feb 2026, 02:55

ER

A CD was initially listed at a price that would have given the store

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

15 Jan 2026, 03:45

2

1

474

01 Feb 2026, 23:53

ER

In a group of 42 college students, how many were juniors who landed

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

17 Jan 2026, 03:45

1

357

01 Feb 2026, 23:37

ER

At what price was the article sold?

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

17 Jan 2026, 07:45

2

1

386

01 Feb 2026, 23:07

ER

Bill bought several binders. If each binder was either a $2.20 binder

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

18 Jan 2026, 05:45

1

332

01 Feb 2026, 22:50

ER

The population of Greenvale increases by 10 percent each year.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

18 Jan 2026, 07:45

1

336