Multiple choice

If a clock is starts at noon, then what is the angle turned by hour hand at 3:45 p.m.?

  1. 67.5o

  2. 97.5o

  3. 112.5o

  4. 142.5o
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

From noon to 3:45 p.m. is 3 hours 45 minutes = 3.75 hours. The hour hand moves 360° in 12 hours, so it moves 30° per hour. In 3.75 hours, it turns 3.75 × 30° = 112.5°. The question asks for the angle turned by the hour hand starting from noon.

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