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15 metre deep circular well is 4. 2 find the cost of plastering its inner curved surface area at the rate of 40 per metre square |
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Answer» Answer: 16200 RUPEES Step-by-step EXPLANATION: h=15m r=4.2m csa of CYLINDER =2pirh 2*3.14*4.2*15=405 405*40=16200 |
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