- A3 rotations
- B12 rotations
- C48 rotations
- D4 rotations
Step-by-Step Solution
The marks meet after teeth pass: rotations of the smaller gear.
Answer: D) 4 rotations
Two meshing gears have 36 and 48 teeth. A tooth of each is marked, and the marks touch now. After how many rotations of the smaller gear will the marks touch again for the first time?
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