Math Olympiad 5

Sum, Difference & Multiple( Week 3 Practice)

1. Eric is 7 times the age of Mary who is 4 years younger than Richard. If the total age of the three is 130, how old is Richard?

2. The length of a rectangle is 3.5 times its width. If the perimeter of the rectangle is 225 inches, what is its length (in inches)?

3. In a 2-hour test of 260 questions, there are 20 questions on math. Each math question is given 3 times as much time to answer as each of the other questions. How much time is allotted to all the math questions (in minutes)?

4. Larry has a collection of quarters, dimes and nickels amounting to $6.20. If he had 10 more nickels than quarters and 15 more dimes than nickels, how many of each kind of coin did he have?
Quarter(s): .
Dime(s): .
Nickel(s): .

5. The sum of 7 continuous even numbers is 140. What is the smallest even number among the 7 numbers?

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