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1. Kristen makes $200 a day at a bank. She takes off two days of work without pa

ID: 1136610 • Letter: 1

Question

1. Kristen makes $200 a day at a bank. She takes off two days of work without pay to fly with her friends to another city to attend the concert of her favorite music group. The cost of transportation for the trip is $200. The cost of the concert ticket is $50. The opportunity cost of Tammie's trip to the concert is:

A. $250 B. $400 C. $600 D. $650

2. In one day, Sue can change the oil on 20 cars or change the tires on 40 cars. In one day, Fred can change the oil on 30 cars or change the tires on 40 cars. Sue's opportunity cost of changing oil is __________ than Fred's and her opportunity cost for changing tires is ____________ than Fred's.

A. greater; greater B. less; less C. less; greater D. greater; less

Explanation / Answer

1. B. $400

Explanation: Opportunity cost is what is foregone in order to select another alternative. In order to attend the concert, Kristen needs to forego 2 days' wages, which is $200 * 2 = $400.

2. D. Greater; less

Explanation:

Sue's opportunity cost of changing oil in one unit of car is changing tires in 40/20 = 2 units of cars

Sue's opportunity cost of changing tires in one unit of car is changing oil in 20/40 = 0.50 units of cars

Fred's opportunity cost of changing oil in one unit of car is changing tires in 40/30 = 1.33 units of cars

Fred's opportunity cost of changing tires in one unit of car is changing oil in 30/40 = 0.75 units of cars