Answers

  • Brainly User
2016-02-15T13:40:58+05:30
Volume of the well=πr^2 h=22/7*3/2*3/2*280...so cost of sinking a tube well=>22/7*3/2*3/2*280*3.60=>Rs.7128...now the cost of cementing its inner curved surface area=2πrh*2.50=>2*22/7*3/2*280*2.50=>Rs.6600
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