Answer:
25 mins
Step-by-step explanation:
I think your question is lack of information, and here is my addition for it:
It takes a smaller hose 4 times as long to fill a small swimming pool as it does a larger hose. It takes both hoses working together 20 minutes to fill the swimming pool. How long will it take the smaller hose to fill the pool by itself?
My answer:
Let x the time of the Larger hose so the time of the small hose is: 4x
It takes both hoses working together 20 minutes to fill the swimming pool. which mean: [tex]\frac{1}{x} +\frac{1}{4x} = \frac{1}{20}[/tex]
<=> x = 20 +5 = 25 mins
and the time of the small hose is 4*25 = 100 mins
