1.  At 3:40, the hour hand and the minute hand of a clock form an angle of:
A. 120°
B. 125°
C. 130°
D. 135°

Answer: Option C

Explanation:

Angle traced by hour hand in 12 hrs. = 360°.

Angle traced by it in :

11 hrs = 360 x 11 ° = 110°.
3 12 3

Angle traced by minute hand in 60 min. = 360°.

Angle traced by it in 40 min.

= 360 x 40 ° = 240°.
60

∴ Required angle (240 - 110)° = 130°.