A cylinder well is 21 m ITI its outer and inner diameter are 21 and 14 m respectively. find the cost of renovating the inner curved surface and outer surface at the rate at the rate of rupees 25 per metre square
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Its outer and inner diameters are 21m & 14m respectively. Find the cost of renovating the inner curved surface and outer curved surface at the rate of ₹25 per m². And the answer is ₹57,75
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