1.  At what angle the hands of a clock are inclined at 15 minutes past 5?
A. 58(1º/2)
B. 64º
C. 67(1º/2)
D. 72(1º/2)

Answer: Option C

Explanation:

Angle traced by hour hand in:

21 hrs = 360 x 21 º = 157 1 º
4 12 4 2

Angle traced by min. hand in 15 min.

= 360 x 15 º = 90º.
60

∴ Required angle

= 157 1 º - 90º = 67 1 º
2 2