SOLUTION: Two pipes fill the storage tank in 20 min. with both faucets running. If the cold-water faucet runs as fast as the hot water, how long would it take the cold-water faucet to fill t

Question 377474: Two pipes fill the storage tank in 20 min. with both faucets running. If the cold-water faucet runs as fast as the hot water, how long would it take the cold-water faucet to fill the tub by itself?

I really need help in answering this..
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Practically if you visualise properly you will infer that it will take 40 minutes. double the time since both rates are equal.
...
let each fill in x minutes
..
each one does 1/x of the job in 1 minute.
togther they do 1/20 of the job in 1 minute
1/x +1/x = 1/20
..
LCD = x
(1+1)/x = 1/20
2/x= 1/20
cross multiply
2*20 = 1*x
40 = x
each will fillin 40 minutes.
...
m.ananth@hotmail.ca
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