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A can complete a piece of work in 15 days, and B can complete the same work in 20 days · If they work together for 4 days, what fraction of the work is left?
8/15
7/15
2/5
11/15
8/15
Practice and solve "A can complete a piece of work in 15 days, and B can complete the same work in 20 days · If they work..." for RRB JE CBT-1 - Time and Work · The correct answer is Option A: 8/15 · Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "A can complete a piece of work in 15 days, and B can complete the same work in 20 days · If they work..." for RRB JE CBT-1 - Time and Work · The correct answer is Option A: 8/15 · Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.