Question

Water pases through a pipe at a speed of 10 m/min with a radius of 5mm

Answer 1

Volume flown = 1/3 PI (20)^2 * 24 = 3200 Pi

Volume flown in 1 min = (Pi* 2.5/10 * 2.5/10 * 1000) = 62.5 Pi

Therefore Time taken = 3200 Pi / 62.5 Pi = 51 min. 12 sec.