[Question]The faucet in Betsy's bathroom is broken. Every minute it drips about 10 times. What amount of water is wasted during one hour if each drop contains 0.05 mL?
[Answer]Every minute, 10 * 0.05 = 0.5 mL of water are wasted. Every hour, 0.5 * 60 = 30 mL of water are wasted. The answer is 30.
Q: John builds a toy bridge to support various weights. It needs to support 6 cans of soda that have 12 ounces of soda. The cans weigh 2 ounces empty. He then also adds 2 more empty cans. How much weight must the bridge hold up?
A: The weight of soda was 6 * 12 = 72 ounces. It had to support the weight of 6 + 2 = 8 empty cans. The weight of the empty cans is 8 * 2 = 16 ounces. So it must support 72 + 16 = 88 ounces. The answer is 88.
Question: Mr. Connell harvested 60 apples from his apple tree and 3 times as many peaches from his peach tree. What is the difference between the number of the two fruits?
Answer: Mr. Connell harvested 60 x 3 = 180 peaches. The difference between the number of the two fruits is 180 - 60 = 120. The answer is 120.
[Question]Matias is a salesman in a bookstore. He sold 7 books on Tuesday and three times as many on Wednesday. If the sales from Wednesday were tripled on Thursday, how many books did Matias sell during these three days combined?
[Answer]Matias sold 7 * 3 = 21 books on Wednesday, as he sold three times more books than on Tuesday. The sales from Wednesday were tripled on Thursday, which means Matias sold then 21 * 3 = 63 books. That means in total Matias sold 7 + 21 + 63 = 91 books during these three days. The answer is 91.
Q: Julian has 400 legos and wants to make lego models of two identical airplanes. If each airplane model requires 240 legos, how many more legos does Julian need?
A: Two aeroplanes require 240 legos / airplane x 2 airplanes = 480 legos. Julian needs 480 legos - 400 legos = 80 more legos. The answer is 80.
Question: Sam has 18 cows. 5 more than half the cows are black. How many cows are not black?
Answer:
Half of the cows: 18 / 2 = 9. Black cows: 5 + 9 = 14. 18 - 14 = 4 cows. The answer is 4.