SOLUTION: 2 h and 30 mins to fill a swimming pool using 2 hose pipes,how long will it take nina to fill the pool if she uses 3

Question 459216: 2 h and 30 mins to fill a swimming pool using 2 hose pipes,how long will it take nina to fill the pool if she uses 3
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
I assume they all fill at the same rate
which is: (.5 pool filled) / (2.5 hrs)
(note that each hose can fill 1/2 pool in 2.5 hrs)
Now add the rates to find time, for 3 hoses

Multiply both sides by

hr
min
It takes 36 min to fill the pool with 3 hoses

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