A hose with a larger diameter working alone can fill a swimming pool in 9 hours. A hose with a smaller diameter working alone can fill a swimming pool in 18 hours. Working together, how long would it take the two hoses to fill the swimming pool?
Accepted Solution
A:
- The rate of the hose with the large diameter is: Answer: A). 1/9.
- What is the unknown in the problem?
Answer: C). the time it takes for the hoses working together to fill the pool
-What part of the job does the hose with the large diameter do? Answer: B). x/9