$\begin{array}{l}\text{Here,}\\ \\ \Rightarrow \text{40\% of 265 + 35\% of 180 =50\% of ?}\\ \\ \text{It can also be written as}\\ \\ \Rightarrow \frac{40}{100}\times 256+35\%of180=50\%of?\\ \\ \Rightarrow \text{40}\times \text{2.65 + 35}\times \text{1.8=}\frac{50}{100}\times ?\\ \\ \Rightarrow \text{106+ 63=}\frac{1}{2}\times ?[50\%=\frac{1}{2}]\\ \\ \Rightarrow ?=169\times 2=338\end{array}$

Hence, Option A is correct.