Two solid wheels roll without slipping over the same straight distance

MATHEMATICS · Single correct · CBSE · Mathematics · Proportional Reasoning · Proportional Reasoning

Problem

Two solid wheels roll without slipping over the same straight distance. The radius of wheel A is

40\,\text{cm}

and that of wheel B is

30\,\text{cm}

. What is the ratio of the number of revolutions made by wheel B to that made by wheel A? (a)

16:9

(b)

4:3

(c)

3:4

(d)

2:1