Question: In four years, Suzy will be twice Mary's age then. If Suzy is 20 now, how old is Mary?
Answer: In four years, Suzy will be 20 + 4 = 24. Then Mary will be 24 / 2 = 12. Then Mary is now 12 - 4 = 8. The answer is 8.
[Question]James buys a weight vest for $250. He then buys 200 pounds of weight plates for $1.2 per pound. A 200-pound weight vest would cost $700 but there is a $100 discount. How much does he save with his vest?
[Answer]The weight plates cost 200 * 1.2 = $240. So his vest cost 250 + 240 = $490. He could get the other vest for 700 - 100 = $600. So he saved 600 - 490 = $110. The answer is 110.
Q: John scores 2 shots worth 2 points and 1 shot worth 3 points every 4 minutes. He plays for 2 periods. Each period is 12 minutes. How many points does he score?
A: He played for 2 * 12 = 24 minutes. He gets 2 * 2 = 4 points per minute from the two - point shots. So he scores 4 + 3 = 7 points per minute. There are 24 / 4 = 6 intervals. So he scores 7 * 6 = 42 points. The answer is 42.
Question: Brenda catches smallpox. She has 60 blisters on each arm and 80 blisters on the rest of her body. How many blisters does she have in total?
Answer: First find the total number of blisters on Brenda's arms: 60 blisters / arm * 2 arms = 120 blisters. Then add the blisters on the rest of her body to find the total: 120 blisters + 80 blisters = 200 blisters. The answer is 200.
[Question]Chang's Garden has two kinds of apples. Sweet ones and sour ones. He can sell the sweet ones for $.5 an apple. The sour ones sell for $.1 an apple. 75% of the apples he gets are sweet and the rest are sour. If he earns $40, how many apples did his trees give him?
[Answer]25% of the apples are sour because 100 - 75 = 25. The average price of an apple sold is $.4 because .75(.5) + .25(.1) = .4. He got 100 apples because 40 / .4 = 100. The answer is 100.
[Question]Clara brings a package of 100 stickers to school. She gives 10 stickers to a boy she likes. She gives half of the stickers which she has left to her best friends. How many stickers does Clara have left?
[Answer]
She gives the boy she likes 10 stickers. After giving the boy his stickers, she has 100 10 = 90 stickers left. She gives her best friends 90 / 2 = 45 stickers. This leaves Clara with 90 45 stickers = 45 stickers. The answer is 45.