Question

the marginal or additional gain from rajivs first hour of work

4. A decision at the margin Rajiv is a hard-working college freshman. One Thursday, he decides to work nonstop until he has answered 100 practice problems for his chemistry course. He starts work at 8:00 AM and uses a table to keep track of his progress throughout the day. He notices that as he gets tired, it takes him longer to solve each problem. 8:00 AM 9:00 AM . 10:00 AM 11:00 AM Noon 100 Use the table to answer the following questions. The marginal, or additional, gain from Rajiv's first hour of work, from 8:00 AM to 9:00 AM, isproblems The marginal gain from Rajiv's third hour of work, from 10:00 AM to 11:00 AM, isproblems. Later, the teaching assistant in Rajiv's chemistry course gives him some advice. "Based on past experience," the teaching assistant says, "working on 15 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 arch

Answer 1

(i) The marginal, or additional, gain from rajiv's first hour of work, from 8:00 am to 9:00 pm, is 40 problems.

(ii) The marginal gain from rajiv's third hour of work, from 10:00 am to 11:00 pm, is 20 problems.

(iii) 3 hours working on problems,1 hour reading, in order to use his 4 hours of study time to get the best exam score possible.