Chemical Equilibrium

\(\mathrm{A}(g) \rightleftharpoons 2 \mathrm{~B}(g)+\mathrm{C}(g)\)

For the given reaction, if the initial pressure is \(450 \mathrm{~mm} ~\mathrm{Hg}\) and the pressure at time \(\mathrm{t}\) is \(720 \mathrm{~mm} ~\mathrm{Hg}\) at a constant temperature \(\mathrm{T}\) and constant volume \(\mathrm{V}\). The fraction of \(\mathrm{A}(\mathrm{g})\) decomposed under these conditions is \(x \times 10^{-1}\). The value of \(x\) is ___________ (nearest integer)