An accurate clock shows 8 o'clock in the morning. Through how many degrees will the hour hand rotate when the clock shows 2 o'clock in the afternoon?

144°
150°
168°
180°

Correct answer: 180°

Solution

From 8 a.m. to 2 p.m., the time elapsed is 6 hours. The hour hand moves 30° per hour, so total rotation is 6 × 30° = 180°.

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