The ratio of the time taken on the cutting and return strokes is

Question

In a crank and slotted lever quick-return motion, the distance between the fixed centres is 150 mm and the length of the driving crank is 75mm. The ratio of the time taken on the cutting and return strokes is                    

(a) 1.5   (b) 2.0            (c) 2.2      (d) 2.93