Mathematics Trivia

20

If a square has the same area as a circle whose radius is one unit in length, exactly how long is each side of the square?

13

Can you find a pair of numbers whose sum is 100 and whose product is 2356?

15

A normal stop sign has the shape of what geometrical figure?

10

How many prime numbers are there between 50 and 100?

12

Can you describe in words the set of all numbers, if any, that are larger than their squares?

5

A perfect number is one whose proper factors add up to the number. For example, 6 = 1+2+3. What's the next "perfect number"?

20

If a 10 mile taxi ride costs $12 and a 15 mile ride costs $18, then at the same rate how much would a 24 mile ride cost?

5

Last year a dinner cost $32 and a bottle of wine cost $18. This year the cost of the dinner increased by 5% and the cost of the wine increased by 10%. What was the percent increase in the combined cost of the dinner and wine?

1

What is the sum of the first one-hundred odd numbers, starting with 1?

18

How many numbers between 0 and 100 are divisible by both 6 and 8?

5

A nine-meter long piece of wood is cut so that one piece is 50% longer than the other. Exactly how long is the longer piece?

9

If, the first number of an arithmetic sequence is 200, and the 100th number is 2, what is the 40th number of this sequence?

10

If 5 workers can pack 5 boxes of flowers in 5 minutes, at the same rate, how many boxes can 10 workers pack in 10 minutes?

11

From February 29, 1896, through February 29, 1996 inclusive, how many February 29th's were there?

6

A bicycle wheel whose tire radius is 14 inches is rotating at 120 revolutions per minute. How fast is the bicycle moving in feet per second (to the nearest whole number)?