a cylindrical pillar is 50cm in diameter and 3.5 cm in height . the cost of painting its curved surface area at the rate of Rs. 12.50 per sq meter is
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A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface of the pillar at the rate of र 12.50 per m2. = र 5.5 x 12.50 = र 68.75
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