Question: A book has 8 chapters. Beth has read 2 chapters in 3 hours. If she continues reading at that rate, in how many hours will she be able to finish reading the remaining chapters?
Answer with step-by-step thinking: Beth still needs to read 8 - 2 = 6 chapters. She can read 1 chapter in 3 / 2 = 1.5 hours. Therefore, she will be able to finish reading the remaining chapters in 1.5 x 6 = 9 hours.
So the answer is 9.


Question: Trevor is currently 11 years old and his older brother is 20 years old. How old will Trevor be when his older brother is three times as old as Trevor is now?
Answer with step-by-step thinking: When Trevor is 11, his older brother will be 11 x 3 = 33 years old. Trevor’s older brother is 20 - 11 = 9 years older than Trevor. Since Trevor is 9 years younger, Trevor will be 33 - 9 = 24 years old.
So the answer is 24.


Question: Ned opens a left-handed store. He sells left-handed mice. They cost 30% more than normal mice. He sells 25 a day and his store is open every day except Sunday, Thursday, and Friday. If normal mice cost $120 how much money does he make a week?
Answer with step-by-step thinking:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The left - hand mice cost 120 * .3 = $36 more than right - handed ones. So they cost 120 + 36 = $156. So he makes 156 * 25 = $3900 a day. The store is open 7 - 3 = 4 days a week. So in a week, he makes 3900 * 4 = $15,600.
So the answer is 15600.