Multiple choice

An accurate clock shows 9 a.m. Through how many degrees will the hour hand rotate when the clock shows 7 p.m.?

  1. 210°

  2. 300°

  3. 120°

  4. 180°
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The hour hand moves 360 degrees in 12 hours, which is 30 degrees per hour. From 9 a.m. to 7 p.m. is 10 hours. The rotation is 10 * 30 = 300 degrees.

AI explanation

The time difference from 9 a.m. to 7 p.m. is 10 hours. Since the hour hand moves 30 degrees per hour, we multiply 10 by 30. The hour hand will rotate by 300 degrees.

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