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Question

The cost of painting the inner curved surface area of a cylindrical container of depth 20 m is Rs. 8800. Painter takes Rs. 40 per metre square to paint the cylindrical container. Find the inner curved surface area of the vessel.(in m2)

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Solution

Cost of painting the inner curved surface = Rs. 8800.
Cost of painting per square meter = Rs. 40
Hence, painted area =880040=220m2
Thus, inner curved surface area =220m2


Mathematics

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