Math Riddles Page 21 of 26
Some math riddles and math problems. There are different difficulty levels but you'll still need to use a variety of math skills to solve them.
201. Divide 110 into two parts so that one will be 150 percent of the other. What are the 2 numbers?
202. At a sports banquet there are one hundred athletes. Each one is either a football or basketball player. At least one is a football player. Given any two of the athletes, at least one is a basketball player. How many of the athletes are football players?
203. The following number is the only one of its kind. Can you figure out what is so special about it? 8,549,176,320
204. Jennifer took a test that had 20 questions. The total grade was computed by awarding 10 points for each correct answer and deducting 5 points for each incorrect answer. Jennifer answered all 20 questions and received a score of 125. How many wrong answers did she have?
205. You have 55 coins totaling $10.00. There are more nickels than pennies, more dimes than nickels, and more quarters than dimes. How many of each coin do you have?
206. A box of candy bars can be divided equally (without cutting anything) among 2, 3, or 7 people. What is the least number of candy bars the box could contain?
207. Using standard mathematical symbols, e.g. +, -, x, etc., rearrange (4) fives to equal the numbers one to ten. For example, 5/5 + 5 - 5 = 1, 5/5 + 5/5 = 2, etc
208. Use each of the digits 1, 2, 3, 4, 5 and 6 once only, in this multiplication problem to make it correct.
? ?
x ?
——
? ? ?
209. Bob is ten years older than his brother Stan. There was a time when Bob was three times as old as Stan. What was Stan's age when Bob was three times as old?
210. Can you replace the question marks with three math symbols to make the following equation correct:
(2 ? 3) ? (6 ? 2) ? (3 ? 1) = 5
