SOLUTION: Alan binds 20 books in 6 hours, when steve helps him they do 20 books in 4 hours. How long will it take for steve to bind 20 books?

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Question 905930: Alan binds 20 books in 6 hours, when steve helps him they do 20 books in 4 hours. How long will it take for steve to bind 20 books?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
steve's time alone
1%2F6+%2B+1%2Fs+=+1%2F4 |Multiplying thru by 12s so as all denominators = 1
2s + 12 = 3s
12hr = s, steve's time alone