A and B work together to complete the re...

A and B work together to complete the rest of a job in 7 days. However, `(37)/(100)` of the job was already done. Also, the work done by A in 5 days is equal to the work done by B in 4 days. How many days would be required by the fastest worker to complete the entire work?

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KIRAN PUBLICATION-TIME AND WORK-TYPE-VI

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