An open cylindrical drum has an internal radius of 0.5 m and a height of 1.2 m

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

Problem

An open cylindrical drum has an internal radius of 0.5 m and a height of 1.2 m. Tin sheet costs ₹150 per m

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and 8\% extra sheet is required for wastage. Approximately how much money is needed to make the drum? (a) ₹724 (b) ₹866 (c) ₹738 (d) ₹683