Math Olympiad 5

Sum, Difference & Multiple( Week 3 Practice)

1. Hillary is 5 times the age of Rene who is 2 years younger than Laura. If the total age of the three is 93, how old is Laura?

2. The length of a rectangle is 5 times its width. If the perimeter of the rectangle is 432 inches, what is its length (in inches)?

3. In a 3-hour test of 210 questions, there are 90 questions on math. Each math question is given twice as much time to answer as each of the other questions. How much time is allotted to all the math questions (in minutes)?

4. Joe has a collection of quarters, dimes and nickels amounting to $7.50. If he had 10 more nickels than quarters and 20 more dimes than nickels, how many of each kind of coin did he have?
Quarter(s): .
Dime(s): .
Nickel(s): .

5. The sum of 9 continuous even numbers is 108. What is the smallest even number among the 9 numbers?

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