The Volume $V$ Of a Gas Varies Inversely as the Pressure $P$

Multiple Choice

The volume $V$ of a gas varies inversely as the pressure $P$ on it. The volume of a gas is $220 \mathrm{~cm}^{3}$ under a pressure of $18 \mathrm{~kg} / \mathrm{cm}^{2}$ . What will be its volume under a pressure of $30 \mathrm{~kg} / \mathrm{cm}^{2}$ ?

A) $367 \mathrm{~cm}^{3}$
B) $132 \mathrm{~cm}^{3}$
C) $145 \mathrm{~cm}^{3}$
D) $385 \mathrm{~cm}^{3}$