Question

A wheel has a diameter of x inches and a second wheel has a diameter of y inches. The first wheel covers a distance of d feet in 100 revolutions. How many revolutions does the second
wheel make in covering d feet?
(A) 100xy (B) 100y - x (C) 100x - y
(D) 100y/x
(E) 100x/y

Answer 1

Answer:

E=(100x)/y

Step-by-step explanation:

For 1st wheel:

Radius of 1st wheel= x/2

d=100×2π(x/2)

For 2nd wheel:

Radius of 2nd wheel= y/2

n×2π(y/2)=d

n×πy=100×πx

n= (100x)/y