If (7^2 + 24^2)*4*(5^2 + 10^2)*5/(75^2 + 100^2) = 5n, what is the value of n?
(7^2 + 24^2)*4*(5^2 + 10^2)*5 / (75^2 + 100^2)==100
n ==100 / 5 ==20
