ABCD is a parallelogram.AB is divided at P and CD at Q so that AP : PB = 3 : 2 and CQ : QD= 4 : 1.If PQ meets AC at R,then AR =____ AC.

Question

$\begin{array}{1 1}\large\frac{2}{7}\\\large\frac{3}{7}\\\large\frac{4}{7}\\\large\frac{1}{7}\end{array} $