Calculate the Values of X and Y in the Following

Calculate the values of x and y in the following chart.  

$\begin{array}{l}\hline { \text { Pulley A } }\quad\quad\quad\quad\quad\quad \text { Pulley B } \\\begin{array}{ | l | l | l | l | } \hline \text { Diameter } & \mathrm { rpm } & \text { Diameter } & \mathrm { rpm } \\\hline 36 \mathrm {~cm} & 400 & x \mathrm {~cm} & 720 \\\hline 15 \mathrm {~cm} & 300 & 24 \mathrm {~cm} & y \\\hline\end{array}\end{array}$

A) x = 240, y = 1,885
B) x = 24, y = 188.5
C) x = 48, y = 375
D) x = 24, y = 375
E) x = 20, y = 187.5