find hours to fill a tank of 70m*44m*3m filled by pipe of diameter 35 cm at rate of 6m/ second?

3 answers

70*44*3 = 6 * pi (17.5)^2 t

t = 70*44*3/[6*pi*17.5)^2] seconds

divide by 3600 to get hours
4 4/9
Wtf is this