37. Find the cost of sinking a tubewell 280 m deep, having diameter 3 – InterviewSolution

1.	37. Find the cost of sinking a tubewell 280 m deep, having diameter 3 m at th3.60 per cubic metre. Find also the cost of cementing its inner eurved at aiametear 4 mm, when 1 eubie2.50 per square metre.
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