SOLUTION: John can dig a ditch in 3 hours. Mary can dig the same ditch in 4
hours. How long will it take the two the two of them working together
at independently (at their respective time
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-> SOLUTION: John can dig a ditch in 3 hours. Mary can dig the same ditch in 4
hours. How long will it take the two the two of them working together
at independently (at their respective time
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Question 962678: John can dig a ditch in 3 hours. Mary can dig the same ditch in 4
hours. How long will it take the two the two of them working together
at independently (at their respective times) to dig the same ditch? Answer by Alan3354(69443) (Show Source):
