AHSME 1973 Problem 8

If 1 pint of paint is needed to paint a statue 6 ft. high, then the number of pints it will take to paint (to the same thickness) 540 statues similar to the original but only 1 ft. high is $\textbf{(A)}\ 90 \textbf{(B)}\ 72 \textbf{(C)}\ 45 \textbf{(D)}\ 30 \textbf{(E)}\ 15$