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 200 revolutions. How many revolutions does the second wheel make in covering d feet?
Choices:
A) 200x/y B) 200y - x C) 200x - y D) 200y/x E) 200x
First Wheel with diameter x inches ----&gt; So the circumference = x*pi --------- (1)   Second Wheel with diameter y inches ----&gt; So the circumference = y*pi --------- (2)   Revolutions = distance/circumference   So, from equation (1)   200 = d/(x*pi)   d = 200 * x * pi ---------- (3)   From equation (2)   Revolutions = d/(y*pi) = (200 * x * pi) / (y*pi) = 200x/y   200x/ynswer (200x/y)
<result>A</result>
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 200 revolutions. How many revolutions does the second wheel make in covering d feet?