P is 4 times faster than Q in doing a jo...

P is 4 times faster than Q in doing a job. Q takes 27 more days than P to finish the job. If they work together. in how many days will the work be finished?

`6(4)/(5)` days

`7(2)/(5)` days

`7(3)/(5)` days

`7(1)/(5)` days

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