Problem Solving (PS)

30 Apr 2026, 01:41

ER

The function # is defined as p # q = p q if p > q, else as p x q.

505-555 (Easy) | Functions and Custom Characters

505-555 (Easy) | Functions and Custom Characters hide tags

ExpertsGlobal5

29 Apr 2026, 19:00

1

3

221

02 May 2026, 08:45

ER

Four boys and three girls are to be seated in a row. How many

705-805 (Hard) | Combinations

705-805 (Hard) | Combinations hide tags

ExpertsGlobal5

29 Apr 2026, 19:00

10

4

301

02 May 2026, 07:45

ER

If a, b, and c are positive real numbers such that a(b + c)

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

kevincan

29 Apr 2026, 17:54

7

5

545

by: KarishmaB

04 May 2026, 23:42

ER

How many positive integers x are there such that when x is

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

kevincan

29 Apr 2026, 14:32

5

2

352

by: pappal

19 May 2026, 13:43

ER

The positive integers P, Q, P - Q, and P + Q are all prime

555-605 (Medium) | Must or Could be True, Number Properties

555-605 (Medium) | Must or Could be True, Number Properties hide tags

kevincan

29 Apr 2026, 13:50

1

192

29 Apr 2026, 15:15

ER

Jeremy sold his car to Sabrina for 20% less than what he pai

605-655 (Medium) | Percent and Interest Problems

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

kevincan

29 Apr 2026, 10:50

1

218

29 Apr 2026, 10:59

ER

A list of n integers is arranged in two columns of equal len

805+ (Hard) | Must or Could be True +2 tags

805+ (Hard) | Must or Could be True, Number Properties, Probability hide tags

kevincan

29 Apr 2026, 05:11

1

209

29 Apr 2026, 06:07

ER

A wedding planner charges $120 per guest for the first 50

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

kevincan

30 Apr 2026, 03:10

4

2

213

29 Apr 2026, 03:44

ER

June has x dollars saved for a trip and none for tuit

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

kevincan

30 Apr 2026, 10:31

1

3

167

28 Apr 2026, 22:39

ER

During a 24hour period, the minute's arm of the clock covers how many

655-705 (Hard) | Distance and Speed Problems

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

ExpertsGlobal5

28 Apr 2026, 19:00

2

4

8,645

02 May 2026, 06:45

ER

Working alone, machines A, B, and C can complete a task in 6, 12, and

655-705 (Hard) | Work and Rate Problems

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

ExpertsGlobal5

28 Apr 2026, 19:00

2

4

328

02 May 2026, 05:45

ER

P = {0.375, 1,25, 2, 3, 4, 5.5}[/m]. If three

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

kevincan

28 Apr 2026, 20:36

5

256

28 Apr 2026, 21:42

ER

Blanche invested $40,000 at r percent simple interest for on

655-705 (Hard) | Percent and Interest Problems

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

kevincan

28 Apr 2026, 11:56

3

2

244

28 Apr 2026, 22:32

ER -2

Shauna has applied for a job in Company A, where th

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

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

kevincan

28 Apr 2026, 08:12

6

2

249

by: Username1512

29 Apr 2026, 04:07

ER

If f(x) =3x^4 - 5x^2 + 2x + k and f(-5) = -2[/m], w

555-605 (Medium) | Algebra, Functions and Custom Characters

555-605 (Medium) | Algebra, Functions and Custom Characters hide tags

kevincan

28 Apr 2026, 04:47

2

295

28 Apr 2026, 06:56

ER

How many three-digit integers are there such that the hundre

655-705 (Hard) | Combinations

655-705 (Hard) | Combinations hide tags

kevincan

28 Apr 2026, 02:34

1

201

28 Apr 2026, 03:27

ER

The in-store price for an outdoor pool is $985.00.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

kevincan

28 Apr 2026, 08:18

1

172

28 Apr 2026, 03:24

ER

The function f(n) for an integer n is defined by the number of prime

655-705 (Hard) | Functions and Custom Characters

655-705 (Hard) | Functions and Custom Characters hide tags

ExpertsGlobal5

27 Apr 2026, 19:00

3

6

316

02 May 2026, 04:45

ER

A function f(n) is defined as 2^(n-1)/2 when n is odd and 3n/2 when n

505-555 (Easy) | Exponents, Functions and Custom Characters

505-555 (Easy) | Exponents, Functions and Custom Characters hide tags

ExpertsGlobal5

27 Apr 2026, 19:00

8

5

350

by: The_ashura

07 Jun 2026, 07:47

ER

All employees of Celtic Systems are either programmers or sy

655-705 (Hard) | Fractions and Ratios

655-705 (Hard) | Fractions and Ratios hide tags

kevincan

27 Apr 2026, 17:19

6

3

325

by: vasu1104

04 May 2026, 14:07

ER

Two-fifths of the residents of Plainfield live downtown and

555-605 (Medium) | Fractions and Ratios, Percent and Interest Problems

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kevincan

27 Apr 2026, 16:02

4

1

324

27 Apr 2026, 20:43

ER

Travelers at two nearby airports, Lager and Moorhead, partic

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

kevincan

28 Apr 2026, 08:21

3

2

232

by: agrasan

27 Apr 2026, 22:18

ER

How many three-digit positive integers have three different

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

kevincan

27 Apr 2026, 04:01

9

4

340

by: HarshavardhanR

03 May 2026, 22:09

ER

At a gala dinner, each attendee was accompanied by his or he

705-805 (Hard) | Combinations

705-805 (Hard) | Combinations hide tags

kevincan

27 Apr 2026, 02:28

1

213

27 Apr 2026, 08:58

ER

The sums of the four combinations of three of four numbers

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

kevincan

28 Apr 2026, 08:34

7

5

381

by: vasu1104

01 May 2026, 23:36

ER

On the number line, the shaded interval is represented by which of the

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

ExpertsGlobal5

26 Apr 2026, 19:00

5

8

401

02 May 2026, 02:45

ER

If 2x < p 10 and |p| < 6, which of the following cannot be a value

655-705 (Hard) | Absolute Values +2 tags

655-705 (Hard) | Absolute Values, Inequalities, Must or Could be True hide tags

ExpertsGlobal5

26 Apr 2026, 19:00

9

4

553

02 May 2026, 01:45

ER

Set S contains 16 integers whose range, mode, median, and

805+ (Hard) | Statistics and Sets Problems

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kevincan

26 Apr 2026, 16:19

9

8

375

29 Apr 2026, 08:36

ER

Yolanda had two cups containing equal amounts of liquid: the

705-805 (Hard) | Mixture Problems, Word Problems

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

kevincan

26 Apr 2026, 11:32

2

340

by: adhin31

22 May 2026, 00:17

ER

What is the product of all positive odd integers less than 2

655-705 (Hard) | Algebra, Number Properties

655-705 (Hard) | Algebra, Number Properties hide tags

kevincan

26 Apr 2026, 04:33

7

1

281

26 Apr 2026, 05:23

ER

Esther and Florian have a son named Diego. The average of th

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

kevincan

26 Apr 2026, 04:17

1

171

26 Apr 2026, 05:20

ER

The provincial income tax that Leonor pays is [m]p\%[/m] of

655-705 (Hard) | Percent and Interest Problems

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kevincan

26 Apr 2026, 04:04

1

217

26 Apr 2026, 01:17

In a box, 7 different pairs of socks were kept. Two socks were chosen

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Peterparker2

25 Apr 2026, 23:54

2

6

291

28 Apr 2026, 04:23

A hotel assigns 5 keys to 5 guests at random

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Lorenzini

25 Apr 2026, 15:51

4

1

218

by: ankushsambare

26 Apr 2026, 20:32

ER

Mia and Maude each receive money for a 30-day trip. Mia rece

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

kevincan

25 Apr 2026, 12:13

1

200

by: ankushsambare

26 Apr 2026, 20:46

ER -1

Currently, 1/3 of the loans managed by Maple

705-805 (Hard) | Fractions and Ratios, Must or Could be True

705-805 (Hard) | Fractions and Ratios, Must or Could be True hide tags

kevincan

25 Apr 2026, 08:40

4

2

286

by: Anindita97

25 Apr 2026, 23:44

ER

Let [m]f(x)[/m] be the greatest integer less than or equal t

705-805 (Hard) | Functions and Custom Characters, Probability

705-805 (Hard) | Functions and Custom Characters, Probability hide tags

kevincan

25 Apr 2026, 06:28

5

2

281

26 Apr 2026, 22:15

ER

At least 6 identical printers must be used to produce 25,000

805+ (Hard) | Min-Max Problems, Work and Rate Problems

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kevincan

25 Apr 2026, 03:13

12

9

516

by: VibhuAnurag

27 Apr 2026, 11:08

ER

Over 150 students were surveyed about how many internships t

705-805 (Hard) | Percent and Interest Problems

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

kevincan

24 Apr 2026, 17:34

2

302

by: manasatest1234

02 May 2026, 03:33

ER

A drawer in a Antons room contains 10 pairs of socks of eac

805+ (Hard) | Min-Max Problems, Word Problems

805+ (Hard) | Min-Max Problems, Word Problems hide tags

kevincan

24 Apr 2026, 16:37

5

2

254

25 Apr 2026, 11:57

ER

Jonah adds the greatest of three numbers to the average of t

655-705 (Hard) | Algebra, Word Problems

655-705 (Hard) | Algebra, Word Problems hide tags

kevincan

24 Apr 2026, 14:24

3

4

407

by: adipisfugat

06 Jun 2026, 01:25

ER

The table below shows the distribution of heights, in centim

655-705 (Hard) | Statistics and Sets Problems

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

kevincan

24 Apr 2026, 09:59

7

1

271

24 Apr 2026, 23:23

ER

Three football kickers, Matt, Brian, and Andrew, independently try to

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

Bunuel

24 Apr 2026, 03:21

3

8

375

by: VibhuAnurag

27 Apr 2026, 10:54

ER

Valerio averages 90 steps per minute and takes 16 minutes to

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

kevincan

24 Apr 2026, 03:09

5

3

365

27 Apr 2026, 03:13

ER

In a certain course on financial math, there are three time

705-805 (Hard) | Min-Max Problems, Word Problems

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

kevincan

24 Apr 2026, 01:05

6

2

193

by: PGTLrowanhand

24 Apr 2026, 02:56

ER

What is the smallest integer x such that x^14 > 3^34

805+ (Hard) | Exponents +2 tags

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kevincan

24 Apr 2026, 00:23

7

5

487

by: snowinmay

24 May 2026, 04:39

ER

A guest house had food for 60 days for an occupancy of 100 guests.

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

ExpertsGlobal5

23 Apr 2026, 19:00

10

4

348

25 Apr 2026, 10:30

ER

40 men were to take 60 days to complete a project while working 8 hour

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

ExpertsGlobal5

23 Apr 2026, 19:00

10

3

337