ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN: 9780190931919
Author: NEWNAN
Publisher: Oxford University Press
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Please answer the question at the bottom about the four hours of study time.

Jake is a hard-working college freshman. One Thursday, he decides to work nonstop until he has answered 250 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.
Time
Total Problems Answered
8:00 AM
9:00 AM
100
10:00 AM
175
11:00 AM
225
Noon
250
Use the table to answer the following questions.
The marginal, or additional, gain from Jake's second hour of work, from 9:00 AM to 10:00 AM, is
75 problems.
The marginal gain from Jake's fourth hour of work, from 11:00 AM to noon, is
25 problems.
Later, the teaching assistant in Jake's chemistry course gives him some advice. "Based on past experience," the teaching assistant says, "working on
62.5 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 his 4 hours of study time to get the best exam score possible, how many hours should he have spent working
on problems, and how many should he have spent reading?
O hours working on problems, 4 hours reading
O 1 hour working on problems, 3 hours reading
2 hours working on problems, 2 hours reading
O 4 hours working on problems, O hours reading
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Transcribed Image Text:Jake is a hard-working college freshman. One Thursday, he decides to work nonstop until he has answered 250 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. Time Total Problems Answered 8:00 AM 9:00 AM 100 10:00 AM 175 11:00 AM 225 Noon 250 Use the table to answer the following questions. The marginal, or additional, gain from Jake's second hour of work, from 9:00 AM to 10:00 AM, is 75 problems. The marginal gain from Jake's fourth hour of work, from 11:00 AM to noon, is 25 problems. Later, the teaching assistant in Jake's chemistry course gives him some advice. "Based on past experience," the teaching assistant says, "working on 62.5 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 his 4 hours of study time to get the best exam score possible, how many hours should he have spent working on problems, and how many should he have spent reading? O hours working on problems, 4 hours reading O 1 hour working on problems, 3 hours reading 2 hours working on problems, 2 hours reading O 4 hours working on problems, O hours reading
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