Answer this question:A group of parents get together and decide to hire a private school teacher to quit his job and teach their children. His former job paid 45,000 per year and they offered him a 20% raise. If there are 9 kids how much does each parent have to pay?
His raise was 45,000 * .2 = $9,000. So his new wage is 45,000 + 9,000 = $54,000. So they each have to pay him 54,000 / 9 = $6,000 per year.
The answer is 6000.

Answer this question:Joy has 30 pencils, and Colleen has 50 pencils. If they bought the pencils at $4 each at the store, how much more money did Colleen pay than Joy for her pencils?
The number of pencils that Colleen has more than Joy is 50 - 30 = 20 pencils. If each pencil was sold at $4 each, Colleen paid $4 * 20 = $80 more for the 20 extra pencils she has more than Joy.
The answer is 80.

Answer this question:Lassie eats half of her bones on Saturday. On Sunday she received 10 more bones. She now has a total of 35 bones. How many bones did she start with before eating them on Saturday?
35 bones at the end - 10 received = 25 on Sunday. Lassie ate half, so multiply by two to find the number of bones at the beginning which is 25 * 2 = 50 bones.
The answer is 50.

Answer this question:Jack has a stack of books that is 12 inches thick. He knows from experience that 80 pages is one inch thick. If he has 6 books, how many pages is each one on average?
There are 960 pages because 80 x 12 = 960. Each book is 160 pages because 960 / 6 = 160.
The answer is 160.