A sphere has a total surface area of 2464 m2. Find the cost of painting the outer curved surface of right circular cone which has a radius of 7 meters and the height that is 4 meters less than the diameter of the sphere at the rate of Rs. 12 per m2.
1
Rs. 5940
2
Rs. 6600
3
Rs. 7260
4
Rs. 7920
5
Rs. 8580