1980 AHSME Problems/Problem 10
Problem
The number of teeth in three meshed gears , , and are , , and , respectively. (The teeth on all gears are the same size and regularly spaced.) The angular speeds, in revolutions per minutes of , , and are in the proportion
Solution
The distance that each of the gears rotate is constant. Let us have the number of teeth per minute equal to . The revolutions per minute are in ratio of: Therefore, the answer is .
See also
1980 AHSME (Problems • Answer Key • Resources) | ||
Preceded by Problem 9 |
Followed by Problem 11 | |
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