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span >A and B together can complete a piece of work in 40 days while B and C together can complete the same work in 55 days. All of three together can complete 80% of the whole work in 26.4 days then find the time taken by A and C together to complete the whole work. Note: You have to find approx. value

A 52 days

B 57 days

C 50 days

D 55 days

E 60 days

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