What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from(a) 3 to 9     (b) 4 to 7     (c) 7 to 10(d) 12 to 9   (e) 1 to 10   (f) 6 to 3

Explanation

To solve the problem of finding what fraction of a clockwise revolution the hour hand of a clock turns through for each specified time interval, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Clock:**
A clock is divided into 12 hours, and a complete revolution is 360 degrees. Therefore, each hour represents:
\[
\text{Degrees per hour} = \frac{360 \text{ degrees}}{12 \text{ hours}} = 30 \text{ degrees}
...