Calculate the maximum allowable span for $3/4-$in$.$ Class I Plyform decking with face grain across supports carrying a design load of $150l\frac{b}{s}qft.$ Assume the decking is continuous over three or more spans and limit deflection to $\frac{1}{240}$ of span length.

Hint: Use Table $13-6$ for strength properties.

Hint $2$: We are only interested in the maximum allowable span for decking $($e$.$g$.$ joist spacing$).$ Hint $3$: assume actual: $b=12$ in$.d=\mathrm{.}75$ in$.$