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OpenStudy (anonymous):
A and B work at digging a ditch alternately for a day each. If A can dig a ditch in ‘a’ days and B can dig it in ‘b’ days, will work get done faster if A begins the work? I. n is a positive integer such that n(1/a + 1/b) = 1 II. b > a (out of the 2 stamens given above 1,2. Which one is required to answer the question)
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