Find the cost of flooring the verandah at the rate of Rs 12 per $m^2$ if the length and breadth of the verandah are in the ratio 3:2 and its perimeter is 40 m.

Question

$\begin{array}{11} (a)\; \text{Rs 1152} \\ (b)\; \text{Rs 1050} \\ (c)\; \text{Rs 950 } \\ (d)\; \text{Rs 1500} \end{array}$