SOLUTION: One pipe can fill a tank in 6 hours and another pipe can fill the tank in 10 hours. How long will it take to fill the tank if both pipes are used?

Question 710847: One pipe can fill a tank in 6 hours and another pipe can fill the tank in 10 hours. How long will it take to fill the tank if both pipes are used?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Add their rates of filling
Rate of 1st pipe = ( 1 tank filled ) / ( 6 hrs )
Rate of 2nd pipe = ( 1 tank filled ) / ( 10 hrs )

Multiply both sides by

If both pipes are open the tank is filled in
3 hrs 45 min
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