SOLUTION: A children's inflatable pool takes 22 minutes to fill with an electrical pump. It takes 49 minutes to let the air out of the pool. If the pool's valve is accifentally left open,
Algebra.Com
Question 366703: A children's inflatable pool takes 22 minutes to fill with an electrical pump. It takes 49 minutes to let the air out of the pool. If the pool's valve is accifentally left open, how long will it take to fill the pool?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
takes 22 minutes to fill
so it does 1/22 of the job in 1 minute
..
49 minutes to deflate
so it does 1/49 of the job in 1 minute.
..
effective filling in 1 minute will be
1/22-1/49
(49-22)/22*49
27/22*49
= 0.025 of the job is done in 1 minute when both are on
1/0.025
= 40 hours
...
m.ananth@hotmail.ca
RELATED QUESTIONS
A children's inflatable pool takes 22 minutes to fill with an electrical pump. It takes... (answered by ikleyn)
1 pool pump takes 60 minutes to fill up a pool, another pool pump takes 40 minutes to... (answered by nerdybill,stanbon)
If one pump takes 12 minutes to fill a tank and another pump takes 20 minutes to fill the (answered by feliz1965)
It takes Pump A 10 minutes longer to fill a tank with water than it takes pump B to fill... (answered by lwsshak3)
One pump fills a tank 4 times as fast as another pump. If the pumps work together, they... (answered by vleith)
One pump can drain a pool in 7 minutes. When a second pump is also used together with the (answered by user_dude2008,scott8148)
one pump can drain a pool in 7 minutes. When a second pump is also used together with the (answered by josmiceli)
A small pump can fill a pool in one hour less than twice as long as a large pump. If the (answered by richwmiller)
The swimming pool in Bob’s backyard holds 10 gallons of water. A gallon of water costs d... (answered by Alan3354)