A bus stop is barricaded from the remaining part of the road, by using 50 hollow cones made of recycled cardboard. Each cone has a base diameter of $$40cm$$ and height $$1m$$. If the outer side of each of the cones is to be painted and the cost of painting is Rs $$12$$ per $${m^2}$$, what will be the cost of the painting all these cones? $$(Use\,\pi = 3.14\,and\,take\sqrt {1.04} = 1.02)$$