SOLUTION: Tap P takes 3 hours to fill a tank, Tap R takes 6 hours to fill the tank.If tap R opens one hour later after opening tap P .What is the time taken by both taps to fill the tank?

Algebra ->  Test -> SOLUTION: Tap P takes 3 hours to fill a tank, Tap R takes 6 hours to fill the tank.If tap R opens one hour later after opening tap P .What is the time taken by both taps to fill the tank?       Log On


   

Question 1068434: Tap P takes 3 hours to fill a tank, Tap R takes 6 hours to fill the tank.If tap R opens one hour later after opening tap P .What is the time taken by both taps to fill the tank?



Answer by josgarithmetic(39613) About Me  (Show Source):
You can put this solution on YOUR website!
P, 1%2F3
R, 1%2F6
P and R together, 1%2F2

Let t be the time that P and R fill the tank together.
%281%2F3%29%2A1%2B%281%2F2%29%2At=1
Solve for t.