Sign In Sign Up Ask an AI advisor
jessisjawsome
jessisjawsome
10.09.2019 • 
Business

Kyoko is a hard-working college junior. one saturday, she decides to work nonstop until she has answered 200 practice problems for her chemistry course. she starts work at 8: 00 am and uses a table to keep track of her progress throughout the day. she notices that as she gets tired, it takes her longer to solve each problem.
8: 00am - 0
9: 00am - 80
10: 00am - 140
11: 00am - 180
12: 00am - 200
the marginal, or additional, gain from kyoko's first hour of work, from 8: 00 am to 9: 00 am, is 80 problems.
the marginal gain from kyoko's third hour of work, from 10: 00 am to 11: 00 am, is 40 problems.
later, the teaching assistant in kyoko's chemistry course gives her some advice. "based on past experience," the teaching assistant says, "working on 30 problems raises a student's exam score by about the same amount as reading the textbook for 1 hour." for simplicity, assume students always cover the same number of pages during each hour they spend reading.
given this information, in order to use her 4 hours of study time to get the best exam score possible, how many hours should she have spent working on problems, and how many should she have spent reading?

Solved
Show answers

Ask an AI advisor a question

I want advice