Problema Solution
a tank can be filled in 18 hours by pipe A or in 24 hours by pipe B. How long would it take both pipes to fill the tank?
Answer provided by our tutors
Add the rates of flow of both pipes
This is read as:
(1 tankful)/(A's time to fill it) + ( 1 tankful)/(B's time to fill it) = (1 tankful)/(A and B's time to fill it)
Multiply both sides by
It takes both pipes 10 hrs 17 min 9 sec
check:
close enough