Problem Solving (PS)

29 Mar 2026, 03:53

ER

How many positive integers less than [m]20[/m] are divisors

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

kevincan

29 Mar 2026, 01:25

1

151

29 Mar 2026, 06:16

ER

If k is a positive integer, how many possible values are the

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

kevincan

29 Mar 2026, 01:03

6

1

193

29 Mar 2026, 06:18

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

287

04 Apr 2026, 14:33

ER

If m and n are integers satisfying n-3 > 2m

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

kevincan

28 Mar 2026, 12:16

5

1

278

by: HubristicPsyche

29 Mar 2026, 18:20

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

283

by: gauravshukla06

29 Mar 2026, 08:14

ER

Veronica and 8 friends share equally the cost of 6 pizzas

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

kevincan

28 Mar 2026, 09:39

1

271

by: stne

08 Apr 2026, 08:28

ER

The 12 districts of Bradenton reported on average 7.5 traffi

805+ (Hard) | Statistics and Sets Problems

805+ (Hard) | Statistics and Sets Problems hide tags

kevincan

09 Apr 2026, 06:42

5

2

333

by: Adit_

04 Apr 2026, 22:21

ER

If a multiple of 4 is divided by 100, what is the greatest p

555-605 (Medium) | Multiples and Factors, Remainders

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

kevincan

28 Mar 2026, 04:54

2

220

28 Mar 2026, 15:26

ER

For all positive integers, f(x) is defined as the sum of the

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

kevincan

28 Mar 2026, 01:36

5

0

175

28 Mar 2026, 01:36

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

157

28 Mar 2026, 00:49

ER

How many positive integers less than or equal to 300 are div

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

kevincan

28 Mar 2026, 00:18

0

163

28 Mar 2026, 00:18

ER

At a fair, three families purchase drinks: the Peterson fami

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

kevincan

27 Mar 2026, 23:49

0

128

27 Mar 2026, 23:49

Let a, b, c, and d be positive numbers such that: [m]\frac{

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

kevincan1

27 Mar 2026, 09:21

5

2

337

by: Adit_

04 Apr 2026, 22:49

ER

Avertz Rent-a-Car agency charges $35.00 per day and $0.8

555-605 (Medium) | Algebra +3 tags

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

kevincan

27 Mar 2026, 07:45

4

1

390

27 Mar 2026, 09:54

ER

A merchant has a beverage that is 90%

805+ (Hard) | Percent and Interest Problems

805+ (Hard) | Percent and Interest Problems hide tags

kevincan

27 Mar 2026, 06:47

4

2

263

by: kaustubhkohli12

28 Mar 2026, 00:22

ER

How many positive integers x are there such that the le

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

kevincan

27 Mar 2026, 05:43

5

2

202

27 Mar 2026, 05:43

ER

A reviewer scores tablets using a weighted average of three

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

kevincan

27 Mar 2026, 02:51

4

2

217

27 Mar 2026, 14:57

ER

Two trains depart at the same time from Dunhill and Stanton

655-705 (Hard) | Distance and Speed Problems

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

kevincan

26 Mar 2026, 22:52

4

1

248

by: KRKfan

27 Mar 2026, 05:11

ER

13 students in a class had a median score of 10 and an average score

705-805 (Hard) | Statistics and Sets Problems

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

ExpertsGlobal5

26 Mar 2026, 19:00

5

3

269

28 Mar 2026, 10:30

ER

The list A consists of 10 consecutive even integers.

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

ExpertsGlobal5

26 Mar 2026, 19:00

4

263

28 Mar 2026, 09:30

ER

Fran and Gettie usually take 8 hours and 12 hours

805+ (Hard) | Work and Rate Problems

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

kevincan

26 Mar 2026, 15:37

3

1

280

by: Ujjwalk31

28 Mar 2026, 21:27

ER

Dino and Esther usually take 8 hours and 12 h

655-705 (Hard) | Work and Rate Problems

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

kevincan

26 Mar 2026, 15:02

3

2

265

27 Mar 2026, 04:20

ER

Juan, Nicole, and Jacobo are saving money at constant rates

705-805 (Hard) | Work and Rate Problems

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

kevincan

26 Mar 2026, 14:13

1

254

by: tejas6

20 Apr 2026, 15:21

ER

Troy traveled by bike from Augusta to Athens at a constant s

555-605 (Medium) | Distance and Speed Problems

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

kevincan

26 Mar 2026, 14:01

4

2

367

by: NidhiYad

03 Apr 2026, 06:29

ER

The speed of the Gulf Stream

605-655 (Medium) | Arithmetic, Distance and Speed Problems

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

kevincan

26 Mar 2026, 13:19

6

1

400

by: ankushsambare

04 Apr 2026, 20:17

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

314

31 Mar 2026, 23:03

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

214

26 Mar 2026, 02:10

ER

Dimitra runs for 1 hour as follows: For the first 20 minu

805+ (Hard) | Distance and Speed Problems

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

kevincan

26 Mar 2026, 00:30

3

1

219

26 Mar 2026, 12:13

ER

Theofanos and Gretchen cycled from Anton to Beauville along

705-805 (Hard) | Distance and Speed Problems

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

kevincan

26 Mar 2026, 00:09

3

1

213

26 Mar 2026, 02:13

ER

Alvaro invests 1,000 at 6% interest compounded semiannually

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

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

kevincan

25 Mar 2026, 22:24

5

6

500

by: shubh8

11 Apr 2026, 12:18

ER

In the year 2010, the average age of children in a class of 20 was 12

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

ExpertsGlobal5

25 Mar 2026, 19:00

4

2

267

28 Mar 2026, 08:30

ER

The value of a stone is directly proportional to the cube of its weigh

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

ExpertsGlobal5

25 Mar 2026, 19:00

5

2

339

28 Mar 2026, 07:15

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

219

25 Mar 2026, 16:53

ER

Giannis and Dinos run a 10-kilometer race. Giannis runs thre

655-705 (Hard) | Distance and Speed Problems

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

kevincan

25 Mar 2026, 14:30

2

1

199

25 Mar 2026, 23:58

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

254

by: stne

04 Apr 2026, 13:39

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

255

26 Mar 2026, 16:34

ER

In a certain marketing course, the final grade is a weighted

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

kevincan

25 Mar 2026, 11:26

0

131

25 Mar 2026, 11:26

ER

In a supply chain class of more than 30 students ranked from

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

kevincan

25 Mar 2026, 10:44

4

5

349

by: egmat

01 Apr 2026, 02:29

ER

On the first floor of a building, there are 1 man and 5 wome

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

kevincan

25 Mar 2026, 09:50

6

3

285

by: KRKfan

29 Mar 2026, 07:51

ER

A regular container of Prosopo skin cream contains [m]x[/m]

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

kevincan

25 Mar 2026, 06:09

2

1

294

by: stne

04 Apr 2026, 13:30

ER

Malcolms is a store that sells only furniture and food.

705-805 (Hard) | Percent and Interest Problems

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

kevincan

31 Mar 2026, 20:06

9

3

359

31 Mar 2026, 20:08

ER

What is the sum of the last three digits of 7^51 +

705-805 (Hard) | Exponents, Number Properties

705-805 (Hard) | Exponents, Number Properties hide tags

kevincan

25 Mar 2026, 02:21

4

1

234

by: Dereno

25 Mar 2026, 01:32

ER

On Christmas, Susanne bought a few flowers for $1. The flower vendor

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

ExpertsGlobal5

24 Mar 2026, 19:00

6

4

302

28 Mar 2026, 06:15

ER

The range of the elements in list A is 17 while the range of the

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

ExpertsGlobal5

24 Mar 2026, 19:00

7

347

28 Mar 2026, 05:15

ER

Craig added up all sums of the form 1/y + 1/35 such that the

705-805 (Hard) | Multiples and Factors

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

kevincan

25 Mar 2026, 07:28

1

2

223

by: egmat

26 Mar 2026, 00:52

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

169

by: Dereno

24 Mar 2026, 11:41

ER

A set J consists of 7 consecutive integers. If a subset of J

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

kevincan

24 Mar 2026, 09:53

6

1

196