Problem Solving (PS)

11 Mar 2026, 20:42

ER

If a six sided die is rolled three times, what is the probability of

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

24 Jul 2019, 03:57

49

17

30,600

11 Mar 2026, 20:37

ER

If a+b=2c, a+c=b, and b+c=5a, what is the ratio of a:b:c?

555-605 (Medium) | Algebra, Fractions and Ratios

555-605 (Medium) | Algebra, Fractions and Ratios hide tags

Bunuel

09 Feb 2017, 06:01

75

18

14,490

11 Mar 2026, 19:55

ER

If the probability that the first event will occur is 1/4, and the

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

24 May 2018, 06:13

6

5

14,785

11 Mar 2026, 18:33

ER

If Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

26 May 2022, 09:00

3

4

5,080

11 Mar 2026, 13:10

ER

If apples are bought at the rate of 30 for a rupee. How many apples mu

655-705 (Hard) | Percent and Interest Problems

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

Bunuel

01 Feb 2019, 01:41

47

13

31,943

11 Mar 2026, 12:41

ER

The price of an item is discounted 10 percent on day 1 of a sale. On d

655-705 (Hard) | Percent and Interest Problems, Word Problems

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

Bunuel

17 Jun 2019, 00:07

14

8

6,155

by: vallequalle

11 Mar 2026, 12:00

ER

At a certain company, operating expenses are measured as the sum of

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

27 Mar 2017, 03:22

28

9

5,523

11 Mar 2026, 11:55

ER

Rs. 16,820 is divided between Seeta and Geeta who are 27 and 25 years

655-705 (Hard) | Percent and Interest Problems

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

Bunuel

17 Jun 2021, 03:00

19

4

3,085

11 Mar 2026, 11:44

ER

If $ 5,000 is invested in an account that earns 8% interest compounded

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

03 Jan 2016, 12:17

8

4

6,773

11 Mar 2026, 11:25

ER

Leonard invested $10,000 in a 4-year certificate of deposit (CD) with

605-655 (Medium) | Percent and Interest Problems

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

Bunuel

06 Apr 2022, 02:15

20

3

2,143

11 Mar 2026, 11:02

ER

Given the above, evaluate g(-r) if r = -7.

605-655 (Medium) | Absolute Values, Functions and Custom Characters

605-655 (Medium) | Absolute Values, Functions and Custom Characters hide tags

Bunuel

28 Mar 2026, 04:10

28

5

6,505

11 Mar 2026, 10:26

ER

Car X began traveling at an average speed of 35 miles per hour. After

655-705 (Hard) | Distance and Speed Problems

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

1, 2

Bunuel

02 Sep 2015, 22:50

93

20

18,293

11 Mar 2026, 10:07

ER

How many sets of positive integer solutions does the equation [m]2(x –

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

14 Jan 2022, 03:15

10

3

2,879

11 Mar 2026, 08:24

ER

If x - 7 = x + 7, x = ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

15 Jun 2023, 11:00

28

2

2,893

11 Mar 2026, 06:55

ER

A certain amount of 8% copper ore was mixed with another amount of 3%

Sub 505 (Easy) | Mixture Problems

Sub 505 (Easy) | Mixture Problems hide tags

Bunuel

02 Aug 2023, 06:00

157

5

30,719

by: KarishmaB

11 Mar 2026, 05:03

ER

At a garage sale, all of the prices of the items sold were different.

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

05 Feb 2014, 02:31

127

13

33,861

11 Mar 2026, 04:09

ER

Let A, M, and C be nonnegative integers such that A + M + C = 12. What

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

15 Mar 2019, 01:47

8

4

5,653

11 Mar 2026, 03:27

ER

If integers p, q and r are the roots of the equation x^3 - 7x^2 + 12x

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

01 Dec 2022, 11:15

2

1,595

11 Mar 2026, 03:22

ER

How many solutions does 1/[x*(x + 1)] + 1/[x*(x + 2)] = 1/(x +1) have?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

28 Oct 2021, 08:00

7

4

2,854

11 Mar 2026, 03:20

ER

If a + b = x, and a b = y, then ab =

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

23 Oct 2024, 01:30

10

4

1,835

11 Mar 2026, 03:18

ER

x is a positive integer divisible by 4; as x increases from 1824 to 18

605-655 (Medium) | Algebra, Number Properties

605-655 (Medium) | Algebra, Number Properties hide tags

Bunuel

19 Dec 2019, 00:21

21

10

5,139

11 Mar 2026, 03:00

ER

Team X and team Y have a tug of war. From their starting positions tea

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

01 Mar 2022, 03:01

4

6

2,166

by: egmat

11 Mar 2026, 02:39

ER

In how many ways can 3 prizes be distributed among 5 students when

555-605 (Medium) | Combinations

555-605 (Medium) | Combinations hide tags

Bunuel

06 May 2021, 01:11

24

11

4,790

by: egmat

11 Mar 2026, 02:34

ER

If x^2<25, which of the following expressions must be true?

705-805 (Hard) | Absolute Values +2 tags

705-805 (Hard) | Absolute Values, Inequalities, Must or Could be True hide tags

Bunuel

07 Mar 2025, 01:30

17

4

1,987

by: Kinshook

10 Mar 2026, 20:35

ER

What are the values of a and b?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

26 Oct 2020, 11:03

1

4

1,611

10 Mar 2026, 17:31

ER

In the equation n^2 kn + 16 = 0, n is an integer. Which of the

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

23 Mar 2023, 01:30

8

4

3,156

10 Mar 2026, 17:23

ER

Rahim plans to drive from city A to station C, at the speed of 70 km

805+ (Hard) | Distance and Speed Problems, Geometry

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

Bunuel

08 Jan 2020, 02:33

13

6

16,389

10 Mar 2026, 16:40

ER

In 1966 the operative mortality rate in open heart surgery at a certai

605-655 (Medium) | Percent and Interest Problems

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

Bunuel

18 Oct 2021, 03:15

8

3

3,096

10 Mar 2026, 11:16

ER

If x is an odd integer and y = x(x+1)(x-1), which of the following mus

655-705 (Hard) | Exponents +4 tags

655-705 (Hard) | Exponents, Multiples and Factors, Must or Could be True, Number Properties, Roots hide tags

Bunuel

04 Jul 2019, 08:00

83

13

15,022

10 Mar 2026, 10:06

ER

Nine points are placed on xy-plane as shown above. What is the maximum

805+ (Hard) | Combinations, Coordinate Geometry

805+ (Hard) | Combinations, Coordinate Geometry hide tags

Bunuel

17 Nov 2020, 10:07

36

7

10,802

by: Budhaditya_Saha

10 Mar 2026, 10:03

ER

(4*80^(1/2) + 4/(9 + 4*5^(1/2))^(1/2) = ?

605-655 (Medium) | Roots

605-655 (Medium) | Roots hide tags

Bunuel

31 Mar 2022, 02:30

15

3

6,702

10 Mar 2026, 09:59

ER

What is the remainder when 2^92 is divided by 7 ?

605-655 (Medium) | Exponents, Remainders

605-655 (Medium) | Exponents, Remainders hide tags

Bunuel

04 Dec 2022, 11:44

15

3

7,470

10 Mar 2026, 09:31

ER

One robot, working independently at a constant rate, can assemble a do

705-805 (Hard) | Work and Rate Problems

705-805 (Hard) | Work and Rate Problems hide tags

Bunuel

08 Jul 2018, 21:43

59

9

15,718

by: Adit_

10 Mar 2026, 09:21

ER

How many subsets of {2, 3, 4, 5, 6, 7, 8, 9} contain at least one prim

655-705 (Hard) | Number Properties, Statistics and Sets Problems

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

Bunuel

13 May 2019, 21:42

46

8

7,265

10 Mar 2026, 09:20

ER

Lines a and b intersect at the point where y = 0. If the equations of

555-605 (Medium) | Coordinate Geometry

555-605 (Medium) | Coordinate Geometry hide tags

Bunuel

07 Sep 2018, 01:02

11

3

2,245

10 Mar 2026, 08:40

ER

George went to the supermarket with a red and a green bag and bought

655-705 (Hard) | Combinations

655-705 (Hard) | Combinations hide tags

Bunuel

16 Nov 2021, 04:45

6

3

3,609

10 Mar 2026, 08:03

ER

"Cralo" sea food restaurant is famous for fresh crab and lobsters. The

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

27 Jan 2021, 12:40

18

8

3,715

10 Mar 2026, 07:55

ER

If 0.375^3 = 2^a3^b6^c, what is the value of b - a?

655-705 (Hard) | Exponents

655-705 (Hard) | Exponents hide tags

Bunuel

26 Nov 2019, 01:36

19

3

4,299

10 Mar 2026, 07:32

ER

A list of 2018 positive integers has a unique mode, which occurs exact

705-805 (Hard) | Min-Max Problems, Statistics and Sets Problems

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

Bunuel

06 Dec 2021, 08:45

9

2

3,480

by: maathc

10 Mar 2026, 07:25

ER

What is the unit's digit in the numerical value of 2^37*3^47*7^79*13^2

605-655 (Medium) | Exponents, Number Properties

605-655 (Medium) | Exponents, Number Properties hide tags

Bunuel

22 Jan 2020, 02:11

20

6

8,694

10 Mar 2026, 06:06

ER

What is the largest integer n such that 3^n < 0.001?

555-605 (Medium) | Exponents +2 tags

555-605 (Medium) | Exponents, Inequalities, Min-Max Problems hide tags

Bunuel

30 Nov 2016, 03:02

68

7

12,395

10 Mar 2026, 05:48

ER

The value of 3^(19) is what percent of the value of ?

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

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

Bunuel

23 Sep 2022, 07:00

11

3

2,381

10 Mar 2026, 05:45

ER

The sum of the ages of the 4 members of Simpson family is 143 years.

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

Bunuel

11 Mar 2021, 03:30

4

2,255

10 Mar 2026, 04:59

ER

The number of six digit numbers that can be formed from the digits 1,

605-655 (Medium) | Combinations

605-655 (Medium) | Combinations hide tags

Bunuel

10 Feb 2021, 04:30

6

3

2,514

10 Mar 2026, 03:53

ER

Bob bought walnuts at 5 for $1 and apples at 4 for $1. He spent a tota

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

16 Mar 2021, 06:30

6

3

1,677

10 Mar 2026, 02:56

ER

A finite sequence of three-digit integers has the property that the te

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Bunuel

14 Mar 2019, 02:51

10

4

3,604

10 Mar 2026, 02:14

ER

Suppose that P = 2^m and Q = 3^n. Which of the following is equal to

655-705 (Hard) | Exponents

655-705 (Hard) | Exponents hide tags

Bunuel

02 Dec 2021, 03:15

6

2

3,296