Question

When the clock shows the time 4.00am ,the angle between the hour hand and minute
hand is 120°. When the time is 5.00 a.m, the angle between hour hand and minute hand
is 150°. Find the angle moved by the hour hand.
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Answer 1

Answer:

At 4 o'clock the hour is at 4 making an angle of 4*30 = 120 deg from 12. At 5 o'clock the hour is at 5 making an angle of 5*30 = 150 deg from 12. So between 120 deg and 150 deg do the minute and hour hands meet.