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100 Hardest and easiest questions for PS as of April

655-705 Level

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1, 2

Bunuel

21 Aug 2015, 03:49

973

22

257,552

by: bb

30 Mar 2024, 10:13

ER

GMAT PS Question Directory by Topic & Difficulty

505-555 Level +6 tags

505-555 Level, 555-605 Level, 605-655 Level, 655-705 Level, 705-805 Level, 805+ Level, Sub 505 Level hide tags

bb

22 Feb 2012, 11:27

2,853

0

1,181,894

by: bb

22 Feb 2012, 11:27

ER

How many different words can be formed taking 4

705-805 Level | Combinations

705-805 Level | Combinations hide tags

Mugdho

13 Feb 2022, 03:46

4

6

1,419

by: IanStewart

13 Feb 2022, 12:32

ER

How many different words can be formed with the

655-705 Level | Combinations

655-705 Level | Combinations hide tags

Bunuel

13 Jan 2022, 07:15

9

4

1,882

by: bumpbot

17 Mar 2023, 04:17

ER

How many different words of 4 letters can be formed

805+ Level | Combinations

805+ Level | Combinations hide tags

Bunuel

09 Feb 2021, 09:00

11

2

2,518

by: bumpbot

28 Nov 2023, 03:15

ER

How many different-sized circles with positive integer

555-605 Level | Geometry

555-605 Level | Geometry hide tags

Bunuel

28 Nov 2017, 21:02

2

4

1,455

by: Kinshook

21 Jul 2020, 11:26

ER

How many digits 2^100 has?

705-805 Level | Exponents, Fractions/Ratios/Decimals

705-805 Level | Exponents, Fractions/Ratios/Decimals hide tags

1, 2

sparky

12 Jun 2005, 14:41

128

20

69,087

by: bumpbot

03 Apr 2024, 16:37

ER

How many digits are in (8×10^14)(10×10^10)?

555-605 Level | Arithmetic +2 tags

555-605 Level | Arithmetic, Exponents, Number Properties hide tags

Bunuel

26 Apr 2016, 00:53

9

7

5,395

by: HarishKumar

30 Mar 2023, 04:54

ER

How many digits are in the number 50^8 × 8^3 × 11^2?

655-705 Level | Number Properties

655-705 Level | Number Properties hide tags

Bunuel

28 Apr 2016, 01:09

30

4

14,109

by: bumpbot

07 Jan 2024, 05:46

ER

How many digits are required to number a book

605-655 Level | Arithmetic

605-655 Level | Arithmetic hide tags

vomhorizon

01 Oct 2012, 07:08

41

10

57,937

by: bumpbot

02 May 2024, 04:10

ER

How many digits are there in the integer 8^7 × 25^12?

555-605 Level | Exponents, Number Properties

555-605 Level | Exponents, Number Properties hide tags

Bunuel

30 Apr 2016, 03:38

47

8

7,898

by: bumpbot

27 Mar 2024, 09:15

ER

How many digits are there in the product 2^18*5^17 ?

505-555 Level | Exponents, Number Properties

505-555 Level | Exponents, Number Properties hide tags

Bunuel

07 Mar 2023, 01:45

5

2

1,795

by: HarishKumar

30 Mar 2023, 04:17

ER

How many digits are there in the product 2^23*5^24*7^3?

555-605 Level | Exponents

555-605 Level | Exponents hide tags

Bunuel

03 Feb 2015, 09:53

63

12

14,618

by: HarishKumar

05 Apr 2023, 03:55

ER

How many digits does 100^200 have?

555-605 Level | Exponents

555-605 Level | Exponents hide tags

Bunuel

28 Nov 2023, 14:17

3

2

976

by: Bunuel

06 Dec 2023, 14:15

ER

How many digits does 2^17*5^10 have?

505-555 Level | Exponents, Number Properties

505-555 Level | Exponents, Number Properties hide tags

Bunuel

10 Nov 2023, 03:41

3

1

944

by: VivekPrateek

10 Nov 2023, 04:24

ER

How many digits does 5437682*34567254 have?

605-655 Level | Number Properties

605-655 Level | Number Properties hide tags

Bunuel

21 Jun 2023, 07:00

6

2

984

by: Abhishek009

21 Jun 2023, 11:43

ER

How many digits will be there to the right of the

655-705 Level | Arithmetic +2 tags

655-705 Level | Arithmetic, Number Properties, Word Problems hide tags

Bunuel

24 Sep 2019, 22:02

21

10

16,518

by: KarishmaB

16 Aug 2023, 23:49

ER

How many dimes are there in 4x - 1 cents?

505-555 Level | Arithmetic

505-555 Level | Arithmetic hide tags

Bunuel

01 Mar 2018, 23:07

4

3

2,760

by: bumpbot

09 Oct 2023, 01:42

ER

How many distinct 4-letter “words” (with or

705-805 Level | Combinations

705-805 Level | Combinations hide tags

gmatophobia

11 Jan 2022, 11:23

13

3

1,381

by: gmatophobia

05 Mar 2023, 07:08

ER

How many distinct 4-letter “words” can be made

Sub 505 Level | Combinations

Sub 505 Level | Combinations hide tags

Bunuel

06 Jul 2021, 08:00

5

4

4,372

by: bumpbot

27 Oct 2022, 00:23

ER

How many distinct eight-character codes-with all

705-805 Level | Combinations

705-805 Level | Combinations hide tags

Bunuel

09 Dec 2021, 07:00

6

2

923

by: chetan2u

02 Feb 2022, 02:33

ER

How many distinct factors do 165 and 300 have in

655-705 Level | Divisibility/Multiples/Factors

655-705 Level | Divisibility/Multiples/Factors hide tags

Bunuel

01 Jul 2017, 00:15

18

8

4,254

by: bumpbot

16 Nov 2021, 08:54

ER

How many distinct factors does 14! have?

655-705 Level | Divisibility/Multiples/Factors

655-705 Level | Divisibility/Multiples/Factors hide tags

Bunuel

08 Dec 2019, 23:58

27

11

4,205

by: Oppenheimer1945

27 Feb 2024, 07:48

ER

How many distinct four-digit numbers can be formed by

805+ Level | Combinations

805+ Level | Combinations hide tags

mikemcgarry

02 Jan 2014, 13:09

85

14

27,501

by: bumpbot

14 Aug 2023, 08:24

ER

How many distinct integer values of n for inequality |

655-705 Level | Absolute Values, Inequalities

655-705 Level | Absolute Values, Inequalities hide tags

GMATinsight

29 Jun 2015, 08:22

79

12

9,546

by: bumpbot

05 Jun 2023, 10:35

ER

How many distinct integers from the set [1,2,3,..20]

705-805 Level | Word Problems

705-805 Level | Word Problems hide tags

Ravixxx

04 May 2020, 12:30

13

10

5,151

by: bumpbot

09 May 2024, 16:40

ER

How many distinct nine-digit numbers can be created by

605-655 Level | Combinations

605-655 Level | Combinations hide tags

Bunuel

30 Nov 2023, 09:38

2

1

608

by: gmatophobia

30 Nov 2023, 13:57

ER

How many distinct positive factors does 30,030 have?

655-705 Level | Divisibility/Multiples/Factors

655-705 Level | Divisibility/Multiples/Factors hide tags

Drik

18 Dec 2012, 04:07

34

12

21,171

by: bumpbot

02 Sep 2023, 09:53

ER

How many distinct positive four-digit integers can be

505-555 Level | Combinations

505-555 Level | Combinations hide tags

ronr34

30 Sep 2014, 01:26

8

3

5,407

by: Prasan88

21 Oct 2023, 06:11

ER

How many distinct positive integers d exist such that,

805+ Level | Remainders

805+ Level | Remainders hide tags

Bunuel

21 May 2022, 10:32

13

3

3,286

by: Bunuel

09 Nov 2023, 00:40

ER

How many distinct solutions does the equation |1 - |x

655-705 Level | Absolute Values

655-705 Level | Absolute Values hide tags

Bunuel

21 Feb 2023, 04:03

5

3

2,199

by: Bunuel

24 Feb 2023, 01:58

ER

How many distinct triangles could be drawn using as

555-605 Level | Combinations

555-605 Level | Combinations hide tags

Bunuel

22 Jan 2020, 02:09

5

3

3,051

by: bumpbot

22 Apr 2021, 02:49

ER

How many distinct ways can 3 red flags, 2 blue flags,

555-605 Level | Combinations

555-605 Level | Combinations hide tags

gayathri

08 Dec 2004, 14:40

7

3

14,561

by: bumpbot

20 Jan 2022, 10:11

ER

How many divisors of 10^5 will have at least one zero

655-705 Level | Divisibility/Multiples/Factors

655-705 Level | Divisibility/Multiples/Factors hide tags

ArunSharma12

29 Apr 2020, 11:15

8

4

5,767

by: bumpbot

24 Feb 2024, 14:44

ER

How many divisors of 21,600 are perfect squares?

805+ Level | Divisibility/Multiples/Factors, Number Properties

805+ Level | Divisibility/Multiples/Factors, Number Properties hide tags

Bunuel

05 Feb 2021, 15:01

25

6

8,438

by: bumpbot

12 Jul 2023, 08:22

ER

How many divisors of 72^72 are perfect cubes?

655-705 Level | Divisibility/Multiples/Factors, Number Properties

655-705 Level | Divisibility/Multiples/Factors, Number Properties hide tags

Supermaverick

11 Jul 2017, 13:42

51

6

8,120

by: bumpbot

08 Jul 2023, 00:14

ER

How many dollars does a salesperson earn on a sale of

505-555 Level | Percent and Interest Problems

505-555 Level | Percent and Interest Problems hide tags

Bunuel

27 Feb 2018, 23:43

3

2,701

by: varun4s

01 Mar 2018, 20:43

ER

How many even 3 digit integers greater than 700 with

805+ Level | Combinations

805+ Level | Combinations hide tags

1, 2

twixt

02 Sep 2004, 15:21

692

34

75,908

by: gmatchile1

29 Apr 2024, 18:19

ER

How many even 3-digit positive integers can be formed

705-805 Level | Combinations

705-805 Level | Combinations hide tags

Bunuel

28 May 2020, 02:10

9

7

5,302

by: bumpbot

10 Aug 2023, 03:05

ER

How many even 3-digit positive integers can be formed

555-605 Level | Combinations

555-605 Level | Combinations hide tags

Bunuel

28 May 2020, 02:10

4

1,348

by: ScottTargetTestPrep

01 Jun 2020, 08:06

ER

How many even 4-digits numbers can be formed with the

505-555 Level | Combinations

505-555 Level | Combinations hide tags

Bunuel

07 Apr 2022, 06:15

4

2

1,187

by: bumpbot

27 Mar 2024, 18:45

ER

How many even 4-digits numbers can be formed with the

555-605 Level | Combinations, Probability

555-605 Level | Combinations, Probability hide tags

Bunuel

02 Mar 2021, 09:30

1

939

by: CrackverbalGMAT

02 Mar 2021, 09:38

ER

How many even divisors of 1600 are not multiples of 16?

705-805 Level | Divisibility/Multiples/Factors

705-805 Level | Divisibility/Multiples/Factors hide tags

Bunuel

15 Jul 2019, 08:00

74

16

9,555

by: bumpbot

17 Mar 2023, 21:38

ER

How many even factors does 4500 have? A) 36 B) 24 C)

605-655 Level | Divisibility/Multiples/Factors, Number Properties

605-655 Level | Divisibility/Multiples/Factors, Number Properties hide tags

GMATinsight

26 May 2017, 05:05

17

4

4,078

by: bumpbot

01 Jun 2023, 14:49

ER

How many even integers are between 17 and 27 ?

Sub 505 Level | Number Properties

Sub 505 Level | Number Properties hide tags

Bunuel

26 Jul 2021, 03:45

2

1

1,601

by: BrentGMATPrepNow

26 Jul 2021, 06:44

ER

How many even integers are between 17/4 and 47/2 ?

505-555 Level | Number Properties

505-555 Level | Number Properties hide tags

Bunuel

06 May 2020, 09:23

2

3

2,493

by: Archit3110

06 May 2020, 09:40

ER

How many even integers are there between 50^(1/2) and

555-605 Level | Number Properties

555-605 Level | Number Properties hide tags

Bunuel

08 Feb 2019, 05:49

6

5

1,904

by: Abhishek009

16 Feb 2024, 08:49

ER

How many even integers between 100 and 200, inclusive,

605-655 Level | Divisibility/Multiples/Factors

605-655 Level | Divisibility/Multiples/Factors hide tags

Bunuel

25 Dec 2016, 02:30

24

8

11,866

by: pooja.sharma2909

28 Jun 2023, 17:03

ER

How many even integers n ; 13<=n<=313 are of the

705-805 Level | Number Properties

705-805 Level | Number Properties hide tags

honchos

14 Sep 2013, 00:01

12

11

6,190

by: bumpbot

02 Nov 2020, 08:43

ER

How many even integers n, where 100 <= n <= 200,

805+ Level | Divisibility/Multiples/Factors, Number Properties

805+ Level | Divisibility/Multiples/Factors, Number Properties hide tags

zerotoinfinite2006

27 Oct 2010, 11:39

199

10

47,961

by: bumpbot

02 Apr 2024, 05:52

ER

How many even multiples of 35 are there between 349

555-605 Level | Divisibility/Multiples/Factors

555-605 Level | Divisibility/Multiples/Factors hide tags

Bunuel

13 May 2021, 05:15

2

917

by: EgmatQuantExpert

19 May 2021, 21:46

ER

How many even multiples of 9 are there from 1–1,000,

555-605 Level | Arithmetic, Divisibility/Multiples/Factors

555-605 Level | Arithmetic, Divisibility/Multiples/Factors hide tags

Bunuel

23 Jan 2019, 02:18

16

7

2,744

by: bumpbot

07 Feb 2022, 22:06

Problem Solving (PS)