111.
A correct clock shows 9 o'clock in the morning. Through how many degrees will the hour hand rotate when the clock shows 3 o'clock in the afternoon?
Answer: D
The hour hand sweeps the full \( 360^{\circ} \) in twelve hours, so it turns \( 30^{\circ} \) an hour.
\[ 6 \text{ hours} \times 30^{\circ} = 180^{\circ} \]
Only the hour hand is asked about; the minute hand would have turned \( 6 \times 360^{\circ} \) over the same period.
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