UPSKILL MATH PLUS
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Learn more\(A\) can do a work in \(45\) days. He works at it for \(15\) days and then, \(B\) alone finishes the remaining work in \(24\) days. Find the time taken to complete \(80\%\) of the work, if they work together.
Time taken to complete \(80\%\) of the work \(=\) days
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