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A cylindrical vessel open at the top has a base radius of 28 cm. If the total cost of painting the outer part of the vessel is Rs. 357 at the rate of Rs. 0.2 per 100 `cm^(2)`, then find the height of the vessel. (approximately)A. 10 mB. 9 mC. 5 mD. 4 m |
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Answer» Correct Answer - A TSA of outer part `=357 xx(100)/(0.2) cm^(2)`. |
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