Multiple choice

Find the angle between hour hand and minute hand at 9 : 27 o’clock.

  1. 135o

  2. 121.5o

  3. 108o

  4. 100o

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

At 9:27, the hour hand is at 9 + 27/60 = 9.45, which is 9.45×30 = 283.5° from 12 o'clock. The minute hand is at 27×6 = 162° from 12 o'clock. The angle between them is 283.5−162 = 121.5°.