Data Sufficiency (DS)

02 Oct 2025, 01:36

7!! ER

100 Hardest and easiest questions for DS as of October 2025

1, 2

Bunuel

21 Aug 2015, 03:42

842

24

183,714

16 Sep 2025, 06:05

7!! ER

DS Question Directory by Topic and Difficulty

bb

07 Mar 2012, 08:58

1,506

0

480,569

by: bb

07 Mar 2012, 08:58

7!! ER

Josh has a big drawer full of 40 packets, each containing a marker

705-805 Level | Min-Max Problems, Word Problems

705-805 Level | Min-Max Problems, Word Problems hide tags

amanvermagmat

22 Mar 2018, 11:01

70

12

6,341

29 Oct 2025, 09:56

7!! ER

What is the remainder when is divided by 6 if is a positiv

555-605 Level | Remainders

555-605 Level | Remainders hide tags

actleader

12 Nov 2012, 23:18

13

8

10,783

29 Oct 2025, 09:03

7!! ER

A certain law firm has departments specializing in four different area

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

Bunuel

16 Jul 2022, 18:15

3

2

2,164

29 Oct 2025, 08:06

7!! ER

What percent of the employees of Company X are technicians?

555-605 Level | Fractions and Ratios, Percent and Interest Problems

555-605 Level | Fractions and Ratios, Percent and Interest Problems hide tags

Bunuel

06 Dec 2017, 04:11

29

5

11,972

29 Oct 2025, 06:09

7!! ER

City X has 1.2 million residents, 15 percent of who are full-time

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

Bunuel

28 Oct 2025, 23:59

1

235

29 Oct 2025, 04:20

7!! ER

If 500 is the multiple of 100 that is closest to x and 400 is the mult

655-705 Level | Fractions and Ratios, Multiples and Factors

655-705 Level | Fractions and Ratios, Multiples and Factors hide tags

gmatbull

19 Aug 2010, 02:57

207

15

38,658

28 Oct 2025, 23:09

7!! ER

For any integers x and y, min(x, y) and max(x, y) denote the

605-655 Level | Functions and Custom Characters, Min-Max Problems

605-655 Level | Functions and Custom Characters, Min-Max Problems hide tags

1, 2

snkrhed

29 May 2010, 13:23

545

20

119,306

28 Oct 2025, 22:54

7!! ER

Pump A and B together put water in the empty tank of which volume is

655-705 Level | Work and Rate Problems

655-705 Level | Work and Rate Problems hide tags

Bunuel

03 Oct 2024, 01:30

10

2

1,319

28 Oct 2025, 13:48

7!! ER

|s – t| > ||s| - |t||?

655-705 Level | Absolute Values, Inequalities

655-705 Level | Absolute Values, Inequalities hide tags

fattty

13 Jan 2016, 23:39

128

9

14,329

by: Pranavsawant

28 Oct 2025, 13:47

7!! ER

St. Francis’s gym coach is planning a kickball tournament

705-805 Level | Word Problems

705-805 Level | Word Problems hide tags

acegmat1

04 May 2014, 20:12

23

7

8,798

28 Oct 2025, 13:22

7!! ER

What was the percent change in a certain stock portfolio's value betwe

555-605 Level | Percent and Interest Problems

555-605 Level | Percent and Interest Problems hide tags

Bunuel

02 Feb 2022, 06:30

4

2

2,241

28 Oct 2025, 10:18

7!! ER

What is the value of x? (x^2 + 3)^2 - 11(x^2 + 3) + 28 = 0

605-655 Level | Algebra

605-655 Level | Algebra hide tags

mikemcgarry

11 Sep 2014, 13:57

4

5,072

28 Oct 2025, 10:17

7!! ER

If x^3-x=n and x is a positive integer greater than 1, is n

655-705 Level | Multiples and Factors, Remainders

655-705 Level | Multiples and Factors, Remainders hide tags

enigma123

31 Jan 2012, 16:25

240

16

44,638

28 Oct 2025, 09:22

7!! ER

A total of $80, 000 was invested for one year. Part of this amount ear

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

28 Apr 2021, 05:30

2

3

1,870

28 Oct 2025, 07:55

7!! ER

In a group of 70, every member speaks English or French.

655-705 Level | Overlapping Sets, Word Problems

655-705 Level | Overlapping Sets, Word Problems hide tags

Bunuel

08 May 2025, 02:19

4

7

1,360

28 Oct 2025, 07:51

7!! ER

If x > 1 and y > 1, is x < y ? (1) x^2/(xy + x) < 1 (2) xy/(y^2 - y)

555-605 Level | Inequalities

555-605 Level | Inequalities hide tags

MHIKER

27 Jan 2012, 13:44

45

11

25,164

28 Oct 2025, 06:43

7!! ER

A type of candy comes in two flavors, sweet and sour, and in two color

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

28 Oct 2025, 00:18

4

2

295

28 Oct 2025, 06:25

7!! ER

A man uses a biased dice to decide whether to go ahead with

605-655 Level | Probability

605-655 Level | Probability hide tags

Bunuel

28 Oct 2025, 00:17

1

309

28 Oct 2025, 06:14

7!! ER

Does the decimal equivalent of p/q, where p and q are positive integer

Sub 505 Level | Fractions and Ratios

Sub 505 Level | Fractions and Ratios hide tags

vaivish1723

23 Jan 2010, 00:37

125

19

41,657

28 Oct 2025, 04:28

7!! ER

Kylie invested a certain amount of money at r% yearly interest

605-655 Level | Percent and Interest Problems

605-655 Level | Percent and Interest Problems hide tags

Bunuel

04 Aug 2023, 05:00

66

8

22,849

27 Oct 2025, 22:55

7!! ER

Nate Dogg sings hooks for two different prices: $52 for an EP and $58

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

Bunuel

07 Sep 2015, 04:34

17

5

4,892

27 Oct 2025, 20:35

7!! ER -1

If a certain school will buy computers at a fixed price of x dollars

Sub 505 Level | Word Problems

Sub 505 Level | Word Problems hide tags

kingbucky

06 Jun 2025, 02:38

3

4

1,288

by: Aishna1034

27 Oct 2025, 11:13

7!! ER

GMAT Club Olympics 2024 (Day 3): Charlie invested $x for one year at

705-805 Level | Percent and Interest Problems

705-805 Level | Percent and Interest Problems hide tags

Bunuel

10 Jul 2024, 07:00

29

10

7,554

27 Oct 2025, 09:28

7!! ER

Is positive integer p even?

805+ Level | Multiples and Factors

805+ Level | Multiples and Factors hide tags

BrentGMATPrepNow

20 May 2019, 06:22

48

11

5,668

27 Oct 2025, 08:57

7!! ER

Jane drove at a constant speed from point A to point B and back to

705-805 Level | Distance and Speed Problems

705-805 Level | Distance and Speed Problems hide tags

Bunuel

01 Oct 2024, 01:30

10

3

2,215

27 Oct 2025, 07:02

7!! ER

Alex bought a smartwatch at $200 from his friend and sold it to anoth

655-705 Level | Percent and Interest Problems

655-705 Level | Percent and Interest Problems hide tags

EgmatQuantExpert

20 Jun 2018, 01:48

19

6

6,270

by: Strategix

27 Oct 2025, 05:37

7!! ER

Machine J runs at a constant rate and produces a lot consisting of 300

505-555 Level | Work and Rate Problems

505-555 Level | Work and Rate Problems hide tags

Bunuel

27 Oct 2025, 00:48

1

273

27 Oct 2025, 04:40

7!! ER

Does it benefit a company overall to invest in employee training?

705-805 Level | Non-Math Related

705-805 Level | Non-Math Related hide tags

guddo

13 Aug 2024, 01:26

99

17

9,063

by: kdipayan

27 Oct 2025, 04:22

7!! ER

If bowl S contains only marbles, how many marbles are in bowl S?

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

27 Oct 2025, 00:46

1

227

27 Oct 2025, 04:15

7!! ER

If m not equal to zero is m^3 > m^2 ?

555-605 Level | Inequalities

555-605 Level | Inequalities hide tags

harikris

24 Sep 2012, 23:12

16

6

5,345

27 Oct 2025, 02:33

7!! ER

What is the probability of picking a blue ball in 2nd pick from a bag

655-705 Level | Probability

655-705 Level | Probability hide tags

chetan2u

13 May 2016, 03:43

29

6

7,501

by: mj12121212

26 Oct 2025, 20:18

7!! ER

Machines Y and Z work at their respective constant rates. If it takes

555-605 Level | Work and Rate Problems

555-605 Level | Work and Rate Problems hide tags

Bunuel

13 Jun 2024, 01:30

8

5

1,347

26 Oct 2025, 12:55

7!! ER

In year x, it rained on 40% of all Mondays and 20% of all Tuesdays. On

655-705 Level | Percent and Interest Problems

655-705 Level | Percent and Interest Problems hide tags

Bunuel

29 Sep 2021, 01:00

29

7

8,258

by: SamiMartinez

26 Oct 2025, 12:48

7!! ER

Working at their respective constant rates, machine A makes 100 copies

805+ Level | Work and Rate Problems

805+ Level | Work and Rate Problems hide tags

Bunuel

24 Aug 2020, 21:44

40

9

6,803

26 Oct 2025, 11:37

7!! ER

In a certain class of n students, the average

705-805 Level | Statistics and Sets Problems

705-805 Level | Statistics and Sets Problems hide tags

gmatophobia

26 Sep 2023, 05:45

8

2

1,245

26 Oct 2025, 10:20

7!! ER

What is the value of number X?

555-605 Level | Multiples and Factors, Number Properties

555-605 Level | Multiples and Factors, Number Properties hide tags

EgmatQuantExpert

27 Feb 2018, 10:00

43

6

7,540

26 Oct 2025, 09:58

7!! ER

Is v - w > x - y? (1) v > x and w < y (2) w < v and x < y

655-705 Level | Inequalities

655-705 Level | Inequalities hide tags

Bunuel

04 Nov 2019, 02:30

10

4

4,425

26 Oct 2025, 07:55

7!! ER

Sara is taller than Ikuko, who is shorter than both Elias and Gertie.

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

Bunuel

19 Feb 2021, 10:04

12

3

9,975

26 Oct 2025, 04:19

7!! ER

Set S of Cardinality of 7 has distinct elements. Is the probability of

655-705 Level | Probability

655-705 Level | Probability hide tags

Tan2017

08 May 2017, 09:15

14

3

3,715

26 Oct 2025, 01:23

7!! ER

A college admissions committee will grant a certain number

605-655 Level | Combinations

605-655 Level | Combinations hide tags

nverma

12 Apr 2010, 13:56

276

16

34,733

26 Oct 2025, 00:49

7!! ER

What was the value of the sales of Pioneer Computers in 1990?

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

24 Oct 2025, 01:12

5

3

317

by: Souradeep17

26 Oct 2025, 00:31

7!! ER

On the number line shown, is zero halfway between r and s ?

705-805 Level | Absolute Values, Inequalities

705-805 Level | Absolute Values, Inequalities hide tags

1, 2

DenisSh

12 Oct 2009, 01:00

1,166

39

122,879

by: Vishnu0001

26 Oct 2025, 00:03

7!! ER

Peter works as a teaching assistant and gets paid on a weekly basis.

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

GMATBusters

06 Jun 2020, 19:16

1

12

2,543

25 Oct 2025, 23:00

7!! ER

A list contains n distinct integers. Are all n integers cons

805+ Level | Statistics and Sets Problems

805+ Level | Statistics and Sets Problems hide tags

1, 2

UdaySJha

11 Jan 2014, 01:18

156

32

29,296

25 Oct 2025, 22:01

7!! ER

Is the range of a six-number set greater than 3?

655-705 Level | Statistics and Sets Problems

655-705 Level | Statistics and Sets Problems hide tags

Bunuel

07 Mar 2016, 09:05

40

4

7,054

25 Oct 2025, 13:17

7!! ER

Did Insurance Company K have more than $300 million in total net profi

Sub 505 Level | Percent and Interest Problems

Sub 505 Level | Percent and Interest Problems hide tags

AbdurRakib

30 Jun 2016, 14:58

82

6

37,981

25 Oct 2025, 10:09

7!! ER

X and Y started running around a circular track of length 400 meters

705-805 Level | Distance and Speed Problems

705-805 Level | Distance and Speed Problems hide tags

amanvermagmat

09 Jul 2018, 21:45

14

5

2,949

25 Oct 2025, 09:50

7!! ER

Brian drives a certain part of his journey at an average speed of 30

705-805 Level | Distance and Speed Problems

705-805 Level | Distance and Speed Problems hide tags

Bunuel

23 Mar 2023, 03:30

13

2

2,566

25 Oct 2025, 08:56

7!! ER

In the correctly worked addition problem above, A, B, C, D

805+ Level | Arithmetic, Number Properties

805+ Level | Arithmetic, Number Properties hide tags

1, 2

carcass

12 Mar 2012, 07:56

402

24

59,212

by: KarishmaB

25 Oct 2025, 08:19

7!! ER

The sum of n consecutive positive integers is 45. What is

705-805 Level | Number Properties

705-805 Level | Number Properties hide tags

1, 2

enigma123

31 Jan 2012, 17:42

182

20

39,849