Question

. Two pipes A and B can fill a tank in
12 and 16 minutes respectively. Both
pipes are opened together, but 4
min before the tank is full, pipe A is
closed. In how many minutes will
the tank be full?
​

Answer 1

Step-by-step explanation:

pipes A and B can fill a tank in

12 and 16 minutes respectively. Both

pipes are opened together, but 4

min before the tank is full, pipe A is

closed.