Problem Solving (PS)

19 Mar 2026, 06:40

ER

The list -1, 4, x, x^2, 11, 5 contains six numbers, where x

655-705 (Hard) | Must or Could be True, Statistics and Sets Problems

655-705 (Hard) | Must or Could be True, Statistics and Sets Problems hide tags

kevincan

19 Mar 2026, 01:08

1

4

298

19 Mar 2026, 07:46

ER

A bag of marbles contains twice as many red marbles as blue marbles, a

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

Bunuel

16 Dec 2020, 04:30

1

4

5,523

by: egmat

19 Mar 2026, 18:52

ER

If (x+50)/10 is an integer, which of the following must be a factor

555-605 (Medium) | Multiples and Factors, Must or Could be True

555-605 (Medium) | Multiples and Factors, Must or Could be True hide tags

sahilsahh

18 Jul 2024, 22:01

1

2

876

20 Mar 2026, 21:00

ER

Queen Elizabeth Provincial Park contains approximately 2 billion trees

655-705 (Hard) | Percent and Interest Problems

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

kevincan

13 Mar 2026, 13:06

1

3

391

by: stne

23 Mar 2026, 06:35

ER

Fay bought several bottles of each of two types of wine: de

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

kevincan

23 Mar 2026, 02:54

1

190

23 Mar 2026, 07:40

ER

350,000 people live in Largo, 40% more than in Beaconsville.

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

kevincan

22 Mar 2026, 03:46

1

2

261

23 Mar 2026, 22:37

ER

Carmen lives in a country whose income tax system applies a

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

kevincan

22 Mar 2026, 00:43

1

185

23 Mar 2026, 23:00

ER

The population of Taraga is 40% greater than that of Seland,

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

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

kevincan

21 Mar 2026, 09:47

1

278

23 Mar 2026, 23:27

ER

Lucas predicted that the price of oil would rise by 400% to

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

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

kevincan

21 Mar 2026, 03:37

1

257

23 Mar 2026, 23:58

ER

Beatriz reads a report at a constant rate. Four hours before

555-605 (Medium) | Work and Rate Problems

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

kevincan

20 Mar 2026, 23:36

1

2

270

24 Mar 2026, 00:13

ER

Each of the marbles in a bag is either blue, red, or green, and there

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

27 Nov 2018, 00:01

1

5

7,059

24 Mar 2026, 10:51

ER

A dozen eggs costs $2.49, and 3 eggs contain 20 grams of pro

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

kevincan

24 Mar 2026, 11:19

1

174

24 Mar 2026, 11:41

ER

If x and y are integers such that 3 × 5^x × 2^y = 18,750,00

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

kevincan

25 Mar 2026, 02:18

1

2

383

25 Mar 2026, 01:44

ER

An airplane flying at a speed of 300 + x miles per hour

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

kevincan

25 Mar 2026, 23:37

1

236

25 Mar 2026, 16:53

ER

Paraskevas travels 20 kilometers at a constant speed and ret

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

kevincan

26 Mar 2026, 03:21

1

221

26 Mar 2026, 02:10

ER

If 1/2 the water in the pool is removed every five minutes that a drai

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

02 Dec 2021, 08:45

1

2

1,766

26 Mar 2026, 04:26

ER

If Jaime runs at a speed of 25 km/h, how many seconds will

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

kevincan

25 Mar 2026, 13:38

1

2

268

by: aliasgsaleem

26 Mar 2026, 16:34

ER

How many positive integers less than or equal to 50 are divi

705-805 (Hard) | Multiples and Factors

705-805 (Hard) | Multiples and Factors hide tags

kevincan

28 Mar 2026, 00:49

1

0

164

28 Mar 2026, 00:49

ER

Bob and Irene split the bill equally for lunch and left

705-805 (Hard) | Percent and Interest Problems

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

kevincan

28 Mar 2026, 10:46

1

296

by: gauravshukla06

29 Mar 2026, 08:14

ER

Victoria travels 120 kilometers at a constant speed and

805+ (Hard) | Distance and Speed Problems

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

kevincan

26 Mar 2026, 04:41

1

3

324

31 Mar 2026, 23:03

ER

Phineas left a campsite at 1:00 PM, cycling at a speed of 12

655-705 (Hard) | Distance and Speed Problems

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

kevincan

30 Mar 2026, 22:43

1

2

276

by: egmat

01 Apr 2026, 02:30

ER

For which of the following values of n is (−0.5)n the greatest?

505-555 (Easy) | Arithmetic, Exponents

505-555 (Easy) | Arithmetic, Exponents hide tags

Bunuel

05 Nov 2018, 01:14

1

4

2,584

01 Apr 2026, 07:37

ER

The larger of two negative consecutive even integers 2t and 2(t-1) is

Sub 505 (Easy) | Arithmetic, Number Properties

Sub 505 (Easy) | Arithmetic, Number Properties hide tags

Bunuel

13 Apr 2021, 11:15

1

3

1,718

01 Apr 2026, 08:02

ER

Five equally spaced points A, B, C, D, and E lie on a number

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

kevincan

15 Mar 2026, 23:21

1

283

by: Eisha30

02 Apr 2026, 00:44

ER

Mapleman and Syrupo are two of the producers of maple syrup,

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

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

kevincan

01 Apr 2026, 08:07

1

222

02 Apr 2026, 01:44

ER

A taxi company charges a flat fare of €33, which covers up

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

kevincan

02 Apr 2026, 14:23

1

3

311

by: Adit_

03 Apr 2026, 01:55

ER

A bottle that is 3/4 full can fill 6 identical glasses to 2/

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

kevincan

04 Apr 2026, 02:54

1

4

254

by: wanderingnights96

04 Apr 2026, 05:04

ER

Rodrigo wants to complete a 20-kilometer race in no more tha

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

kevincan

25 Mar 2026, 13:55

1

271

by: stne

04 Apr 2026, 13:39

ER

Kiwi, a manufacturer of tablet devices, produces 2,000,000

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

kevincan

29 Mar 2026, 00:08

1

2

295

04 Apr 2026, 14:33

ER

Of the pages produced by a printing press, 15% are unusable. How many

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

31 Aug 2021, 02:22

1

3

1,852

05 Apr 2026, 13:26

ER

What is the difference between the maximum and the minimum value of x/

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

01 Aug 2022, 02:21

1

3

4,296

05 Apr 2026, 21:07

ER

xx =

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

SharukhB

04 Apr 2026, 03:50

1

2

293

by: culpavoluptatum

06 Apr 2026, 22:25

ER

The five numbers shown are listed in decreasing order. Which of the

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

Bunuel

09 Feb 2023, 02:30

1

5

1,885

by: Bunuel

07 Apr 2026, 21:41

If x represents the total number of positive integers

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

pintukr

07 Apr 2026, 07:38

1

146

by: ankushsambare

08 Apr 2026, 01:06

ER

Company X bought a shipment of light bulbs $3 per bulb, paid $1,200 to

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

15 Aug 2019, 00:04

1

4

1,625

08 Apr 2026, 03:07

From a club of 15 photographers, 6 members decided to participate in a

555-605 (Medium) | Combinations

555-605 (Medium) | Combinations hide tags

saynchalk

14 Apr 2025, 07:11

1

2

1,282

by: luisdicampo

08 Apr 2026, 07:20

ER

Rosalia rolls a fair six-sided die [m]x[/m] times. For each

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

kevincan

20 Apr 2026, 19:09

1

151

by: wanderingnights96

08 Apr 2026, 08:18

ER

Marc and Elaine received the same bill at a restaurant but l

555-605 (Medium) | Percent and Interest Problems

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

kevincan

08 Apr 2026, 09:31

1

165

by: MartyMurray

08 Apr 2026, 12:33

ER

Sale prices at the Dauphinville Outlet Store are 50% below

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

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

kevincan

08 Apr 2026, 16:21

1

0

200

08 Apr 2026, 16:21

ER

]What is the average of all the solutions to the equation x(

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

kevincan

09 Apr 2026, 13:22

1

0

194

09 Apr 2026, 13:22

ER

At Kentucky State University in Frankfort, Kentucky, there a

705-805 (Hard) | Fractions and Ratios

705-805 (Hard) | Fractions and Ratios hide tags

kevincan

10 Apr 2026, 01:17

1

0

163

10 Apr 2026, 01:17

ER

Penelope rolls a fair six-sided die twice. What is the prob

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

kevincan

10 Apr 2026, 03:26

1

2

171

by: Adit_

10 Apr 2026, 07:36

ER

The sequence [m]a_1, a_2, a_3, \ldots[/m] is defined by [m]a

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

kevincan

11 Apr 2026, 14:30

1

137

by: dhruv23320

11 Apr 2026, 21:35

ER

On the first day of the year, Ramon and Marga each had $500

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

kevincan

11 Apr 2026, 13:24

1

119

by: dhruv23320

11 Apr 2026, 21:40

ER

Panagiotis tosses a fair coin 5 times. What is the probabili

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

kevincan

12 Apr 2026, 00:31

1

0

131

12 Apr 2026, 00:31

ER

In a certain election system, seats are allocated as follows

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

kevincan

15 Mar 2026, 09:26

1

269

by: sintporro

12 Apr 2026, 07:37

ER

An assembly plant operates a morning shift and an afternoon

655-705 (Hard) | Fractions and Ratios, Word Problems

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

kevincan

14 Apr 2026, 06:10

1

4

210

by: kevincan1

14 Apr 2026, 11:10

ER

At a certain dinner party, there are three drinking glasses for every

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

24 May 2022, 03:45

1

2

972

by: Amazingakhil

15 Apr 2026, 07:13

ER

For all positive integers x, f(x) is the number of positive

705-805 (Hard) | Multiples and Factors

705-805 (Hard) | Multiples and Factors hide tags

kevincan

15 Apr 2026, 05:02

1

173