Question

Find the angle between the minute hand of a clock and the hour hand when the time is $7:20$ am.

Answer 1

The minute hand travels $6$ degree per minute and the hour hand travels $0.5$ degree per minute.

In $20$ minutes, minute hand must have travelled $20\times 6=120$ degrees and the hour hand must have travelled $0.5\times 20=10$ degrees.

Angle between both of them $=$ $110$ degree.