Q: John takes a 10-minute shower every other day for 4 weeks. If his shower uses 2 gallons of water per minute. How much water does he use in those 4 weeks?
A: There are 4 * 7 = 28 days in those 4 weeks. That means he takes 28 / 2 = 14 showers. So he takes a total of 14 * 10 = 140 minutes of showers. So he uses 2 * 140 = 280 gallons of water. The answer is 280.
Question: Jean is a customer service rep and answered 35 phone calls on Monday. On Tuesday, she answered 46 and took 27 calls on Wednesday. On Thursday she answered 61 calls and finished off answering 31 calls on Friday. What’s the average number of calls she answers per day?
Answer: During the week she answered 35 on Mon, 46 on Tue, 27 on Wed, 61 on Thurs and 31 on Fri for a total of 35 + 46 + 27 + 61 + 31 = 200 calls. She answered 200 calls over 5 days so on average, she answered 200 / 5 = 40 calls a day. The answer is 40.
[Question]Tilly needs to sell 100 bags at $10 per bag to make $300 in profit. How much did she buy each bag for?
[Answer]Tilly will make 100 x $10 = $1000 in total. She has spent $1000 - $300 = $700 on 100 bags. Each bag cost Tilly $700 / 100 = $7. The answer is 7.
Q: Mike watches TV for 4 hours every day. On the days he plays video games he plays for half as long as he watches TV. If he plays video games 3 days a week how long does he spend watching TV and playing video games?
A: He plays video games for 4 / 2 = 2 hours a day. He watches TV for 4 * 7 = 28 hours a week. He plays video games for 3 * 2 = 6 hours. So in total he spends 6 + 28 = 34 hours on those activities. The answer is 34.
Question: Mike is 16 years old. His sister Barbara is half as old as he is. How old is Barbara going to be when Mike is 24 years old?
Answer: Barbara is currently 16 years / 2 = 8 years old. Mike is going to be 24 years old after 24 years - 16 years = 8 years. So Barbara is going to be 8 years + 8 years = 16 years old. The answer is 16.
Q: Jim has 2 rows of 4 trees to start. When he turns 10 he decides to plant a new row of trees every year on his birthday. On his 15th birthday after he doubles the number of trees he has. How many trees does he have?
A:
He started with 2 * 4 = 8 trees. He plants trees for 15 - 10 = 5 years. So he planted 5 * 4 = 20 trees. So he had 20 + 8 = 28 trees. After doubling them he had 28 * 2 = 56 trees. The answer is 56.