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Mathematics, 14.04.2020 23:51 hma9153

A project will take Mr A and Mr B 12 days to complete. Now that both of them work for 4 days, with the rest to be completed by Mr A in 10 days, find the number of days Mr B take to complete this project by himself.

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A project will take Mr A and Mr B 12 days to complete. Now that both of them work for 4 days, with t...

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