63. 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:
Angle traced by hour hand in 12 hrs. = 360°
Angle traced by it in 11/3 hrs. = (360/12x11/3)°
= 110°
Angle traced by minute hand in 60 min. = 360°
Angle traced by it in 40 min. = (360/60x40)°
Therefore ,Required angle(240-110)° = 130°
