12. The reflex angle between the hands of a clock at 10.25 is
A. 180° B. 192 ½°
C. 195° D. 197 ½°
Answer:
Angle traced by hour hand in 125 / 12 hrs. =[360/12 x 125/12]°
= 312½°.
Angle traced by minute hand in 25 min. = [360/60 x 25]°
=150°.
Reflex angle = 360 - (312½ -150)°
=360° - 162 ½°
= 197½°.