Percents+Ratios
Integer Manipulation
Factoring
Geometry
Random
100

What percent of 20 is 13? (Q56)

65%

100

What is the least common multiple of 5 and 25?

25

100
Factor x^2+2x+1 in simplest form.

(x+1)^2

100

What shape has 9 sides?

Nonagon

100

What is the full name of this building?

Chinese Community Center

200

In a closed bottle, the product of pressure and volume is constant. By what percent must the volume be decreased to increase the pressure by 25%? (Q72)

20%

200

When n is divided by 5, the remainder is 1. When 3n is divided by 5, what is the remainder? (Q97)

3

200

Given that 9876^2 = 97535376, find 9877^2. (Q138)

97555129

200
A right triangle has legs of length 8 and 15. How long is the hypotenuse?

17

200

How many chairs are in this half of the room?

idk lemme count

300

Maple Syrup is produced from maple sap. If it takes three trees to make 7.5 gallons of sap, and 20 quarts of sap to make one pint of Maple Syrup, how many gallons of syrup will 100 trees produce?

6.25 gallons

300

What is the units digit of 19^93? (Q89)

9

300

What's the smallest integer value n such that n! is divisible by 1024?

12

300

How many scalene triangles have all sides of integral lengths and a perimeter less than 13? (Q168)

3

300

Name every student/teacher in the class

... did you get it right?

400

From time t=0 to time t=1, a population increased by i%, and from time t=1 to time t=2 the population increased by j%, by what percent, in terms of i and j, did the population increase from t=0 to t=2? (Q85)

i+j+ij/10000

400

A store sells 72 decks of cards for $a67.9b. Find a+b. (Q104)

5

400

What is the sum of prime factors of 2^16-1? Hint: 257 is prime (Q139)

282

400

Triangle ABD is right angled at B. On AD there is a point C for which AC = CD and AB = BC. Find <DAB. (Q171)

60 degrees

400

What is the wifi password for CCC?

cccwifi11

500

Country A has c% of the world's population and d% of its wealth. Country B has e% of the world's population and f% of its wealth. What is the ratio of wealth of a citizen from A to B, assuming communism (all wealth equally shared). (Q83)

de/cf

500

If a /= 1 and (a'th root of 10000 base a) - 10 base a, find a. (Q107)

4

500

Find all real x such that sqrt(x)+1 = x-sqrt(x)-1. (Q152)

4+2sqrt(3)

500

The base of a triangle is 15 inches. Two lines are drawn parallel to the base, terminating in the other two sides an dividing the triangle into three equal areas. What is the length of the parallel closer to the base. (Q179)

5sqrt(6)

500

All of the teachers said their name, grade, school and a fun fact. What were ours?

depends who is there