Question

A pipe can fill a tank in 8 hours. However, in case of outflow from a waste pipe in the
bottom, the tank is filled in 12 hours. If the tank is full, how much time will the waste
pipe take to emptyיווווווווו הו הזמן​

Answer 1

Answer:

I am not sure I am very weak in maths . But I think it waste the water for 4hours