A clock is started at noon. By 10 minutes past 5, the hour hand has turned through Options.
A) 145°  B) 150°  C) 155°  D) 155°  E) None
Sol.   Angle traced by hour hand in 12hrs = 360°   Angle traced by hour hand in 5hrs 10 min. i.e. 31/6 hrs.   = (360/12 x 31/6)° = 155°   Answer 155°
<result>C</result>
A clock is started at noon. By 10 minutes past 5, the hour hand has turned through