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P and Q can complete a task in 12 days and 18 days respectively · If they work together, how many days will it take to finish the work? (Correct to one decimal place)
7.2
7.5
8.1
6.8
7.2
Practice and solve "P and Q can complete a task in 12 days and 18 days respectively · If they work together, how many day..." for RRB JE CBT-1 - Mathematics · The correct answer is Option A: 7.2 · Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "P and Q can complete a task in 12 days and 18 days respectively · If they work together, how many day..." for RRB JE CBT-1 - Mathematics · The correct answer is Option A: 7.2 · Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.