SOLUTION: Pipe A can fill a tank in 3 hours. If pipe B can fill the same tank in 2 hours, how many minutes will it take both pipes to fill 2/3 of the tank?

Question 751260: Pipe A can fill a tank in 3 hours. If pipe B can fill the same tank in 2 hours, how many minutes will it take both pipes to fill 2/3 of the tank?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = time in hrs for both pipes
to fill of the tank
Add their rates of filling to get rate filling together
( 1 tank filled / 3 hrs ) + ( 1 tank filled / 2 hrs ) = ( 2/3 tank / t hrs )

Multiply both sides by

It will take 48 minutes for
both pipes to fill 2/3 of the tank
check:

Multiply both sides by

OK
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