A double acting air compressor $230mm400mm$ running at $450$ rpm

has a clearance of $7\%$ and in which it compresses the pressure to $6$ times

the initial pressure. Find the compressor capacity in $f\frac{t^3}{m}in.$

A$.432\mathrm{.}31$

B$.403\mathrm{.}12$

C$.456\mathrm{.}90$

D$.482\mathrm{.}34$