A clock is started at noon. By 10 minutes past 5, the hour hand has turned through how much?	Choose the correct option: A) 175° B) 155° C) 145° D) 165° E) 195°
We know that angle traced by hour hand in 12 hrs = 360°   Time duration from noon to 10 minutes past 5   = 5 hours 10 minutes   =5(10/60) hour =31/6 hour   Hence the angle traced by hour hand from noon to 10 minutes past 5   =31/6×360/12=31/6×30   =31×5=155°   Answer is 155°.
<result>B</result>
A clock is started at noon. By 10 minutes past 5, the hour hand has turned through how much?