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?
1
\(6 \dfrac{4}{5} \rm \ days\)
2
\(7 \dfrac{2}{5} \rm \ days\)
3
\(7 \dfrac{3}{5} \rm \ days\)
4
\(7 \dfrac{1}{5} \rm \ days\)