Ans: A
$\begin{array}{rcl}
\dfrac{6x+5y}{3y-2x} & = & 7 \\
6x+5y & = & 21y-14x \\
20x & = & 16y \\
\dfrac{x}{y} & = & \dfrac{4}{5} \\
x:y & = & 4:5
\end{array}$
$\begin{array}{rcl}
\dfrac{6x+5y}{3y-2x} & = & 7 \\
6x+5y & = & 21y-14x \\
20x & = & 16y \\
\dfrac{x}{y} & = & \dfrac{4}{5} \\
x:y & = & 4:5
\end{array}$
