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06 Jul 2024, 03:08

ER

100 Hardest and easiest questions for DS as of March 2025

1, 2

Bunuel

21 Aug 2015, 03:42

821

23

175,643

02 Sep 2024, 23:51

ER

DS Question Directory by Topic and Difficulty

bb

07 Mar 2012, 08:58

1,469

0

468,220

by: bb

07 Mar 2012, 08:58

ER

Data Sufficiency Butler: 2 Questions Every Day

1, 2

Bunuel

06 Nov 2018, 08:05

449

23

144,471

25 Apr 2025, 00:33

ER

A women's track team has entered 15 athletes at an upcoming meet.

655-705 Level | Overlapping Sets

655-705 Level | Overlapping Sets hide tags

Bunuel

23 Apr 2025, 00:30

2

1

165

25 Apr 2025, 16:30

ER

Is |a| > |b|? (1) 1/(a − b) > 1/(b − a) (2) a + b < 0

805+ Level | Absolute Values, Inequalities

805+ Level | Absolute Values, Inequalities hide tags

Bunuel

15 Jan 2021, 02:17

17

5

5,086

25 Apr 2025, 16:12

ER

Mr. A sold a house to Mr. B at n% profit and Mr. B sold it to Mr. C

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

24 Apr 2025, 00:30

1

76

25 Apr 2025, 16:09

ER

On a particular tour at the zoo, the ratio of the number of men to the

555-605 Level | Fractions and Ratios, Word Problems

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

Bunuel

24 Apr 2025, 00:30

1

81

25 Apr 2025, 16:05

ER

In a class, there are 170 students, each plays at least one out of 3

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

Bunuel

25 Apr 2025, 00:30

2

87

25 Apr 2025, 16:01

ER

If k is a positive integer and the tens digit of k+5 is 4

605-655 Level | Fractions and Ratios, Number Properties

605-655 Level | Fractions and Ratios, Number Properties hide tags

bekbek

06 Jan 2010, 22:18

107

4

23,411

25 Apr 2025, 11:35

ER

Bunuel's Word Problems DS Diagnostic Test

505-555 Level | Distance and Speed Problems +6 tags

505-555 Level, 555-605 Level, 655-705 Level | Distance and Speed Problems, Mixture Problems, Overlapping Sets, Word Problems, Work and Rate Problems hide tags

Bunuel

16 Jan 2023, 03:34

24

15

7,832

25 Apr 2025, 08:24

ER

Mrs. Claus is selecting three reindeer from the herd for a special

805+ Level | Probability

805+ Level | Probability hide tags

Bunuel

10 May 2024, 01:30

20

8

1,972

25 Apr 2025, 05:53

ER

If P is a set of integers, is the average of P equal to the median of

705-805 Level | Statistics and Sets Problems

705-805 Level | Statistics and Sets Problems hide tags

Aabhash777

29 Mar 2025, 23:47

3

330

by: francine8375

25 Apr 2025, 04:51

ER

GMAT Club World Cup 2022 (DAY 6): A poll conducted on the Wembley Stad

805+ Level | Overlapping Sets, Word Problems

805+ Level | Overlapping Sets, Word Problems hide tags

Bunuel

18 Jul 2022, 08:00

16

14

3,113

25 Apr 2025, 04:06

ER

If y>=0, What is the value of x? (1) |x-3|>=y (2) |x-3|<=-y

705-805 Level | Absolute Values, Inequalities

705-805 Level | Absolute Values, Inequalities hide tags

ugimba

09 Jan 2010, 14:17

266

14

41,782

by: KarishmaB

25 Apr 2025, 02:21

ER

Around the World in 80 Questions (Day 6): Two boxes, A and B, each

655-705 Level | Probability

655-705 Level | Probability hide tags

Bunuel

24 Jul 2023, 08:00

58

3

4,210

25 Apr 2025, 02:05

ER

Last month Grace worked, and was paid for, a total of x hours. Some of

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

fozzzy

17 Jan 2013, 06:50

91

11

20,088

25 Apr 2025, 02:03

ER

What is the value of a^4 - b^4 ?

605-655 Level | Algebra

605-655 Level | Algebra hide tags

itspinky

04 Sep 2009, 17:56

119

13

22,173

25 Apr 2025, 01:44

ER

How many hours were Fran and Fred away from home? (1) They left at 9.

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

25 Apr 2025, 00:30

1

70

by: GMATinsight

25 Apr 2025, 00:54

ER

The only articles of clothing in a certain closet are shirts, dresses,

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

16 Jun 2016, 06:05

274

18

42,731

25 Apr 2025, 00:42

ER

Esther bought a computer at a price of p dollars, and she paid a sales

805+ Level | Word Problems

805+ Level | Word Problems hide tags

Bunuel

21 Apr 2024, 08:45

29

4

5,182

by: KarishmaB

24 Apr 2025, 23:32

ER

A hotel has 80 rooms and charges the same amount per night for each

805+ Level | Word Problems

805+ Level | Word Problems hide tags

illegallyblonde

23 Feb 2024, 22:57

107

13

12,127

by: HarshavardhanR

24 Apr 2025, 23:01

ER

If a certain positive integer is divided by 9, the remainder

555-605 Level | Remainders

555-605 Level | Remainders hide tags

fozzzy

19 Jan 2013, 00:28

81

16

22,313

24 Apr 2025, 21:41

ER

Is the largest of three consecutive integers odd?

505-555 Level | Number Properties

505-555 Level | Number Properties hide tags

Bunuel

28 Feb 2020, 02:26

18

9

5,415

24 Apr 2025, 20:54

ER

Is the number n an integer?

505-555 Level | Number Properties

505-555 Level | Number Properties hide tags

jsphcal

27 Dec 2012, 23:07

16

4

7,301

24 Apr 2025, 20:49

ER

Is the integer x divisible by 6?

555-605 Level | Multiples and Factors, Number Properties

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

jackychamp

14 Feb 2008, 12:37

218

18

61,518

24 Apr 2025, 11:08

ER

Is w greater than 1? (1) w + 2 > 0 (2) w^2 > 1

555-605 Level | Inequalities

555-605 Level | Inequalities hide tags

aiming4mba

07 Sep 2010, 14:13

115

17

39,908

24 Apr 2025, 09:58

ER

If x ≠ −1, which is greater, 1/(x+1) or x/2 ?

Sub 505 Level | Algebra

Sub 505 Level | Algebra hide tags

GMATBusters

01 Nov 2018, 08:35

10

4

6,517

24 Apr 2025, 08:26

ER

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

655-705 Level | Overlapping Sets

655-705 Level | Overlapping Sets hide tags

Bunuel

20 Jul 2023, 08:00

21

7

4,922

24 Apr 2025, 08:23

ER

There are two tanks A, B. After 100 litres of water

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

itisSheldon

06 Mar 2018, 04:16

16

8

2,766

24 Apr 2025, 07:22

ER

Joe, Bob and Dan worked in the ratio of 1:2:4 hours, respectively. How

Sub 505 Level | Fractions and Ratios

Sub 505 Level | Fractions and Ratios hide tags

Bunuel

07 Oct 2014, 08:55

11

4

10,808

24 Apr 2025, 07:17

ER

Is r*s a multiple of 25? (r and s are positive integers)

605-655 Level | Multiples and Factors

605-655 Level | Multiples and Factors hide tags

fattty

13 Jan 2016, 23:34

79

10

9,554

24 Apr 2025, 05:09

ER

If k is a positive integer and n = k(k + 7), is n divisible by 6?

605-655 Level | Multiples and Factors, Remainders

605-655 Level | Multiples and Factors, Remainders hide tags

1, 2

Jem2905

02 Nov 2013, 14:01

332

21

62,046

24 Apr 2025, 04:39

ER

Is the positive integer n equal to the square of an integer?

655-705 Level | Number Properties

655-705 Level | Number Properties hide tags

shikhar

22 Apr 2012, 01:16

33

6

13,243

24 Apr 2025, 04:36

ER

If n is an integer, what is the greatest common divisor of 12 and n ?

555-605 Level | Multiples and Factors

555-605 Level | Multiples and Factors hide tags

Bunuel

25 Jun 2018, 20:29

361

14

36,745

24 Apr 2025, 04:34

ER

If the sum of the three different numbers is 54, what is the largest

505-555 Level | Algebra

505-555 Level | Algebra hide tags

geometric

15 Jan 2012, 23:50

55

9

30,722

24 Apr 2025, 01:04

ER

If JNS Thermal Power Plant operates all 7 days a week

555-605 Level | Statistics and Sets Problems

555-605 Level | Statistics and Sets Problems hide tags

NextstopISB

23 Apr 2025, 10:07

2

114

by: HarshavardhanR

23 Apr 2025, 20:01

ER

If S is a finite set of consecutive even numbers, is the median of S

605-655 Level | Statistics and Sets Problems

605-655 Level | Statistics and Sets Problems hide tags

Bunuel

20 Jan 2015, 07:12

41

16

8,384

23 Apr 2025, 16:21

ER

If r, s, and t are all positive integers, what is the

555-605 Level | Remainders

555-605 Level | Remainders hide tags

jcmorales2012

02 Aug 2012, 16:00

112

15

31,966

23 Apr 2025, 10:58

ER

a and b are natural odd numbers. Find the last digit of

805+ Level | Number Properties

805+ Level | Number Properties hide tags

SherzodAzamov

09 Jan 2021, 07:46

9

3

1,338

23 Apr 2025, 10:42

ER

Last year an employee received a gross annual salary of $18,000, which

Sub 505 Level | Word Problems

Sub 505 Level | Word Problems hide tags

Bunuel

09 Dec 2014, 15:48

1

4

7,173

23 Apr 2025, 10:26

ER

Of the 48 students in a class, 16 like to study History. What percenta

805+ Level | Statistics and Sets Problems

805+ Level | Statistics and Sets Problems hide tags

mangamma

19 Apr 2019, 09:11

30

7

4,532

23 Apr 2025, 08:16

ER

If 15 is a factor of p as well as q, is 15 the highest common factor?

705-805 Level | Multiples and Factors

705-805 Level | Multiples and Factors hide tags

buan15

18 Jun 2020, 09:39

14

6

3,023

23 Apr 2025, 07:30

ER

Three distinct positive integers sum to 10. Is one of the three intege

605-655 Level | Number Properties, Statistics and Sets Problems

605-655 Level | Number Properties, Statistics and Sets Problems hide tags

abrutlag

05 Jul 2020, 10:47

1

4

2,924

23 Apr 2025, 07:19

ER

If each of the two digits X and Y is distinct

705-805 Level | Number Properties

705-805 Level | Number Properties hide tags

ConnectTheDots

28 Aug 2012, 06:56

35

9

8,634

23 Apr 2025, 07:12

ER

If x any y are positive integers, is x even? (1) x^2 + y^2 = 98 (2) x

655-705 Level | Number Properties

655-705 Level | Number Properties hide tags

Bunuel

18 Nov 2020, 01:15

3

1,389

23 Apr 2025, 07:10

ER

If Sarah was 21 years old exactly 5 years ago, how old was Larry exact

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

23 Apr 2025, 00:30

3

154

by: sujoykrdatta

23 Apr 2025, 05:19

ER

What is the value of a^(-2)*b^(-3)?

605-655 Level | Algebra, Exponents

605-655 Level | Algebra, Exponents hide tags

monirjewel

11 Nov 2010, 10:02

61

18

27,062

23 Apr 2025, 01:29

ER

If x^2+y^2=1, is x+y=1 ? (1) xy=0 (2) y=0

605-655 Level | Algebra

605-655 Level | Algebra hide tags

rraggio

15 Sep 2010, 07:37

26

18

29,284

23 Apr 2025, 01:17

ER

Each of three students is given fifteen tokens to spend at a fair with

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

Bunuel

22 Apr 2025, 00:30

4

6

227

23 Apr 2025, 01:17

ER

What is the value of xy? (1) y = x - 1 (2) y^2 = -|x - 1|

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

16 Sep 2023, 08:45

6

3

994