In the following figure, the diameter of pulley A is twice that of pulley B, and pinions C, D and E have 15, 5, and 10 teeth, respectively. If pulley A rotates four times, how many times will pinion E rotate?
Answer:
12 times.
C rotates 8 times where it has 15 teeth (8 * 15). E has 10 teeth: (8 * 15) / 10 = 12.
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| Pulleys and Pinions Puzzle |
12 times.
C rotates 8 times where it has 15 teeth (8 * 15). E has 10 teeth: (8 * 15) / 10 = 12.
