Problema Solution
A swimming pool can be filled in 18 hours if the water enter through a pipe alone or in 23 hours if the water enters in a hose alone. If water is entering through the pipe and the hose how long will it take to fill the pool?
Answer provided by our tutors
let 'x' represent the amount of time it takes to fill the pool with water entering through both the pipe and the hose:
1/x = 1/18 + 1/23
solving for 'x' we have x=10.097
it takes approximately 10.1 hours to fill the pool