The wheel of a motor cycle is of radius 35 cm. How many revolutions per minute must the wheet make, so as to keep a speed of 66 km/h ?

Explanation

To solve the problem of how many revolutions per minute a motorcycle wheel must make to maintain a speed of 66 km/h, we can follow these steps:

### Step-by-Step Solution:

1. **Convert Speed from km/h to cm/min**:
- The speed given is 66 km/h.
- To convert this to cm/min, we first convert kilometers to centimeters and hours to minutes.
- 1 km = 100,000 cm, and 1 hour = 60 minutes.
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