When working alone a, b and c can complete a piece of work in 8, 12 and 30 days respectively. At the most only two people can work on each day and nobody works for more than two consecutive days. What is the minimum number of days that they will take to finish the work? (?
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Step-by-step explanation:
When P, Q and R work together, one-day work = 1/20 + 1/15 + 1/25 = 47/300
Total time taken by P, Q and R to complete the work = 300/47 days
Total work done by Q in (300/47) days = (300/47) × 1/15 = 20/47
Money earned by Q = Total money × Work done by Q
Share of Q = 9600 × 20/47 ≈ Rs. 4085
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