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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?


Sagot :

Answer:

19 mins

Step-by-step explanation:

Adding up timing od pipe A,B ,C