By approximately what percent was the total investment in the two districts A and B More in 1996 as compared to 1995?

Answer: Option A

Total investment of A & B in 1995
= 2923.1 + 7081.6
= Rs. 10004.7
Total investment of A & B in 1996
= 3489.5 + 8352
= Rs. 11841.5
∴ Increase %
$$\begin{array}{rl}& =\frac{11841.5-10004.7}{10004.7}\times 100\\ & =\frac{1836.8}{10004.7}\times 100\\ & =18\%\left(\text{Approx}\right)\end{array}$$