A cylindrical metal tank has radius m and length m

MATHEMATICS · Single correct · CBSE · Mathematics · Surface Areas and Volumes · Surface Areas and Volumes

Problem

A cylindrical metal tank has radius 3 3\,m and length 10 10\,m. Each end of the cylinder is closed by a hemispherical cap of the same radius. Find the cost of painting the entire outer surface of the tank at the rate of Rs 15 per square metre (take π=3.14\pi = 3.14). (a) Rs 4,320\text{Rs }4,320 (b) Rs 4,520\text{Rs }4,520 (c) Rs 3,670\text{Rs }3,670 (d) Rs 5,370\text{Rs }5,370

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