1992 AMC 8 Problem 18
Attempt Problem 18 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).
18.
On a trip, a car traveled miles in an hour and a half, then was stopped in traffic for minutes, then traveled miles during the next hours. What was the car’s average speed in miles per hour for the -hour trip?
Answer: A
Small hint:
Average speed is total distance divided by total time
Big hint:
Total distance is miles; total time is hours, since the stop still counts
Solution:
The car covered miles in total, over hours (the traffic stop still counts as time).
The average speed is miles per hour.
Thus, the correct answer is A .
Problem 18 in other years
- 1985 AMC 8
- 1986 AMC 8
- 1987 AMC 8
- 1988 AMC 8
- 1989 AMC 8
- 1990 AMC 8
- 1991 AMC 8
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