1992 AMC 8 Problem 12
Attempt Problem 12 of the 1992 AMC 8 below, then check your answer against the professionally curated solution from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 1992 AMC 8 solutions, or check the answer key.
All problems are used with official legal permission of the Mathematical Association of America (MAA).
12.
The five tires of a car (four road tires and a full-sized spare) were rotated so that each tire was used the same number of miles during the first miles the car traveled. For how many miles was each tire used?
Answer: C
Small hint:
At any moment of the tires are on the ground, so the total tire-mileage is
Big hint:
Share that total tire-mileage equally among the tires
Solution:
During the miles, tires are always in use, so the total tire-mileage is tire-miles.
Split equally among tires, each tire is used miles.
Thus, the correct answer is C .
Problem 12 in other years
- 1985 AMC 8
- 1986 AMC 8
- 1987 AMC 8
- 1988 AMC 8
- 1989 AMC 8
- 1990 AMC 8
- 1991 AMC 8
- 1993 AMC 8
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