Chapter 1/Ten Principles of Economics ❖ 21
85. Rick buys a 1966 Mustang for $3,000, planning to restore and sell the car. He goes on to spend $9,000 restoring
the car. At this point he can sell the car for $10,000. As an alternative, he can spend an additional $3,000 replacing
the engine. With a new engine the car would sell for $13,000. Rick should
complete the repairs and sell the car for $13,000.
sell the car now for $10,000.
never try such an expensive project again.
be indifferent between (i) selling the car now and (ii) replacing the engine and then selling it.
86. Catherine buys and sells real estate. Two weeks ago, she paid $300,000 for a house on Pine Street, intending to
spend $50,000 on repairs and then sell the house for $400,000. Last week, the city government announced a plan to
build a new landfill on Pine Street just down the street from the house Catherine purchased. As a result of the city’s
announced plan, Catherine is weighing two alternatives: She can go ahead with the $50,000 in repairs and then sell
the house for $290,000, or she can forgo the repairs and sell the house as it is for $250,000. She should
keep the house and live in it.
go ahead with the $50,000 in repairs and sell the house for $290,000.
forgo the repairs and sell the house as it is for $250,000.
move the house from Pine Street to a more desirable location, regardless of the cost of doing so.
87. You are considering staying in college another semester so that you can complete a major in economics. In decid-
ing whether or not to stay you should
compare the total cost of your education to the total benefits of your education.
compare the total cost of your education to the benefits of staying one more semester.
compare the cost of staying one more semester to the benefits of staying one more semester.
compare the total benefits of your education to the cost of staying one more semester.
88. Kyle is planning to take a roadtrip. After he makes his plans, he has to make some unexpected auto repairs. Also,
he sees the price of gas has gone up. Which of these two events should Kyle consider in deciding if it is still
worthwhile to go on the trip?
the unexpected repairs and the increase in the price of gas
the unexpected increase for repairs, but not the increase in the price of gas
the increase in the price of gas, but not the unexpected repairs
neither the unexpected increase in the price of gas nor the unexpected repairs
89. You have eaten two bowls of ice cream at Sundae School Ice Cream store. You consider eating a third. As a ra-
tional consumer you should make your choice by comparing
the benefits from eating all three bowls of ice cream to how much three bowls of ice cream costs.
the benefits from eating all three bowls of ice cream to how much one more bowl of ice cream
costs.
the benefits from eating one more bowl of ice cream to how much three bowls of ice cream costs.
the benefits from eating one more bowl of ice cream to how much one more bowl of ice cream
costs.