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A can do a piece of work in 4 days and B can do the same work in 5 days.Find,How much work can be done by them working together in 2 days |
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Answer» A can do work in = 4 days 1 DAY work by A = 1/4 B can do work in = 5 days 1 day work by B = 1/5 total work by A and B TOGETHER in 1 day 1/4 + 1/5 = 9/20 work DONE by A and B in two days = 9/20 * 2 = 9/10 |
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