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A and B can do a piece of work in 72 days; B and C can do it in 120 days; A and C can do it in 90 days. In what time A...
Solution
Let A, B and C complete A1, B1 and C1 work respectively in one day.Given A and B can do piece of work in 72 days.∴ A and B together complete 1/72th part of work in one day.∴ A1 + B1 =...
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If A can complete a work in N days then A does 1/Nth work in one day.In one day if A does 1/Nth work then A completes...
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