A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:

Answer: Option C

Angle traced by hour hand in 12 hrs = $$360^{\circ }$$
Angle traced by hour hand in 5 hrs 10 min. i.e.,
$$\begin{array}{rl}& \frac{31}{6}\text{hrs}={\left(\frac{360}{12}\times \frac{31}{6}\right)}^{\circ }\\ & =155^{\circ }\end{array}$$