APPLY the formula M.wt \[=\frac{Acidity}{2}\left( \frac{wt\text{ }of\text{ }Pt\text{ }salt\times 195}{wtofPt}-410 \right)\] \[\THEREFORE \,M.wt=\frac{1}{2}\left( \frac{0.75\times 195}{0.245}-410 \right)=93.5\]