Question

Three pipes can be used to fill up a

swimming pool with water. It takes
9 minutes for Pipe A to fill up the pool
while 6 minutes for Pipe B. A third pipe,
Pipe C, takes 4 minutes to empty the
pool. How long would it take to fill the
swimming pool given these conditions?

Answer 1

19 mins

Explanation:

Adding up timing od pipe A,B ,C