SOLUTION: To fill up their swimming pool, the Johnsons decided to use both their high volume hose and their neighbor's regular garden hose. If they had used only their hose, it would have t

Question 72161: To fill up their swimming pool, the Johnsons decided to use both their high volume hose and their neighbor's regular garden hose. If they had used only their hose, it would have taken them 12 hours to fill the pool, but using both hoses it took them only 7 hours. How long would it have taken them to fill the pool using only their neighbor's hose?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
This is a comboned rate problem
The rate with their own hose is:
one pool filled / 12 hrs
The comboined rate is:
one pool filled / 7 hrs
The rate with the neighbor's hose is
one pool filled / x hrs
The equation is

multiply both sides by 12*7*x

hrs with neighbors hose
RELATED QUESTIONS
Im having problems with this problem on how to set it up. TO fill up their swimming... (answered by mananth)

The Doe family is ready to fill their new swimming pool. It can be filled in 12 hours if... (answered by ikleyn,greenestamps)

To empty their swimming pool, the Johnsons decided to use the regular drain and pump. If... (answered by bucky)

Kadita asked Bane's help in filling up her swimming pool with water. It took 12 hours to... (answered by Alan3354,Theo,ikleyn)

NEED HELP ANSWER ASAP!!! DUE SOON!!! Diana�s garden hose can fill her swimming pool in (answered by josmiceli)

You know it takes 11.5 hours to fill your pool with your faucet and hose. Last year, you (answered by ankor@dixie-net.com)

Chris is planning to fill up a kiddie swimming pool for his younger sister but he does... (answered by Alan3354)

One hose can fill a small swimming pool and 65 minutes. A larger hose can fill a... (answered by Alan3354,josgarithmetic)

10. One hose can fill a swimming pool in 40 hours while the second hose fills the pool in (answered by ikleyn,josgarithmetic,greenestamps)