Question

An aquarium tank can hold
7200
liters of water. There are two pipes that can be used to fill the tank. The first pipe alone can fill the tank in
48
minutes. The second pipe can fill the tank in
96
minutes by itself. When both pipes are working together, how long does it take them to fill the tank?

Answer 1

in 48 mins it takes 150 liters p/min
and 96 mins is 75 liters p/min
so it would take 32 mins at 225 liters p/min to fill the tank if they are both working together

Answer 2

so should i say 32?

Answer 3

yes 32 mins