Question: Rosie runs 6 miles per hour. She runs for 1 hour on Monday, 30 minutes on Tuesday, 1 hour on Wednesday, and 20 minutes on Thursday. If she wants to run 20 miles for the week, how many minutes should she run on Friday?
Answer with step-by-step thinking: On Monday and Wednesday, Rosie runs 6 * 1 = 6 miles. On Tuesday, Rosie runs 6 * (30 minutes / 60 minutes) = 3 miles. On Thursday, Rosie runs 6 * (20 minutes / 60 minutes) = 2 miles. So far this week Rosie has run 6 + 3 + 6 + 2 = 17 miles. To reach her goal, she must run 20 - 17 = 3 miles on Friday. Thus, she should run for 6 / 3 = .5 hour which is 30 minutes.
So the answer is 30.

Question: John worked 8 hours a day every day from the 3rd to the 8th, including the 3rd and not including the 8th. How many hours did he work?
Answer with step-by-step thinking: He worked for 8 - 3 = 5 days. So he worked for 5 * 8 = 40 hours.
So the answer is 40.

Question: Hannah harvests 5 strawberries daily for the next whole month of April, which has 30 days. If she gives away 20 strawberries to her friends and 30 strawberries are stolen, how many strawberries does she have by the end of April?
Answer with step-by-step thinking:
Hannah harvests a total of 5 * 30 = 150 strawberries. After giving her friends, Hannah is left with 150 - 20 = 130 strawberries. After some were stolen, Hannah is left with 130 - 30 = 100 strawberries.
So the answer is 100.