Question

An accurate clock shows 8 O' clock in the morning. Throughout how many degrees will the hour hand rotate, when the clock shows 20' clock in the afternoon?  

(a) 150° (b) 144° (c) 168° (d) 180°

Answer 1

(d) Angle made by hour hand for 12 hours = 360°

Angle made by hour hand for 1 hour = 360°/12

Angle made by hour hand for 6 hours =  360°/12 (6) =180°