\(Formula\ for\ veolocity:\\\\
velocity=\frac{distance}{time}\\
v=60\frac{feet}{min}\\
distance=900feet\\\\
velocity*time=distance\ \ |Divide\ by\ velocity\\
time=\frac{distance}{velocity}\\
time=\frac{900}{60}=15minute\\\\
\textbf{It\ will\ take\ 15\ minutes.}\)
