Bunuel wrote:

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

Kudos for a correct solution.

A very simple Question

Circumference of a circle = pi * D = distance covered in one revolution.

For first circle, one revolution = pi*x

In 100 revolutions, distance covered = 100* pi*x = d feet

Second wheel in one revolution = pi*y

For d feet or for 100*pi*x it will take 100*pi*x / pi*y

or, 100x/y

Answer E

My Kudos Please

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