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Answer : 3 4 (1/2) Explanation : Answer: C) 4 (1/2) Explanation: Work done by P alone in one day = 1/6th of the total work done by Q alone in one day = 1/3(of that done by P in one day) = 1/3(1/6 of the total) = 1/18 of the total.  Work done by P and Q, working together in one day = 1/6 1/18  = 4/18 = 2/9  They would take 9/2 days = 4 (1/2) days to complete the work working together.

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