A bicycle has smaller front wheel and larger rear wheel.if the rear wheel has diameter 6 inches and it does 60 revolution, how many revolution will the smaller wheel makes if it has diameter of 5 inches?

Question

A bicycle has smaller front wheel and larger rear wheel.if the rear wheel has diameter 6 inches and it does 60 revolution, how many revolution  will the smaller wheel makes if it has diameter of 5 inches?

henry2, · Accepted Answer

6in/5in * 60rev = 72 revs.

Reiny · Answer

distance covered by the larger wheel = 60(6π) = 360π inches so the smaller wheel with a circumference of 5π must cover the same distance number of rotations = 360π/(5π) = ...