Two methanol$-$water mixtures are contained in separate tanks. The first mixture contains $30\mathrm{.}0$ wt$\%$ methanol and the second contains $70\mathrm{.}0$ wt$\%$ methanol. If $200$ kg of the first mixture is combined with $150$ kg of the second, calculate the composition of methanol in the product in wt$\%($a number from $0-100,$ one decimal place$)?$