Math Olympiad 5

Sum, Difference & Multiple( Week 3 Practice)

1. Eric is 6 times the age of Mary who is 7 years younger than Richard. If the total age of the three is 127, how old is Richard?

2. The length of a rectangle is 4 times its width. If the perimeter of the rectangle is 170 inches, what is its length (in inches)?

3. In a 3-hour test of 180 questions, there are 120 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. Curtis has a collection of quarters, dimes and nickels amounting to $10.40. If he had 20 more nickels than quarters and 10 more dimes than nickels, how many of each kind of coin did he have?
Quarter(s): .
Dime(s): .
Nickel(s): .

5. The sum of 10 continuous even numbers is 290. What is the smallest even number among the 10 numbers?

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