Question

What is the angle between the hands of a clock at 4 o clock?

Answer 1

At 4 o' clock:
Hour hand is at 4(dial)
Minute hand is at 12(dial)
The angle between each dial = 30 degree
Hence at 4, the angle = 30*4 = 120 degree
[Total angle = 360 degree,Hence each dial = 360/12 = 30 degree apart. Hence at dial '4': 30*4 = 120 degree]
Hope it helps.

Answer 2

The answer is in the attachment.