What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from:
$4 t o 7$

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Solution

The number of hours covered in the clockwise revolution from $4 t o 7$ is $3$ hours.
$12$ hours = $1$ full revolution
=> $1$ hour = $\frac{1}{12}$ revolution
=> $3$ hours = $3 \times \frac{1}{12}$ = $\frac{1}{4}$ revolution

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