# Clancy is a hard-working college senior. One Sunday, he decides to work nonstop until he has answered 100 practice problems for his economics 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.TimeTotal Problems Answered8:00 AM09:00 AM4010:00 AM7011:00 AM90Noon100 The marginal, or additional, gain from Clancy’s first hour of work, from 8:00 AM to 9:00 AM, is problems.

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Clancy is a hard-working college senior. One Sunday, he decides to work nonstop until he has answered 100 practice problems for his economics 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.
Time
8:00 AM 0
9:00 AM 40
10:00 AM 70
11:00 AM 90
Noon 100

The marginal, or additional, gain from Clancy’s first hour of work, from 8:00 AM to 9:00 AM, is problems.

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Step 1

Marginal gain or additional gain for every hour is the amount of gain achieved during that hour. When Clancy studies from 8 am to 9am, number of problems covered increases from 0 to 40.  So, Marginal gain would be 40 questions f...

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