How many cubic m of soil must be dug to make a well 20 m deep and 2m in diameter . If the curved surface of the well is to be plastered at a rate of Rs. 50/meter square , find the cost of plastering?
How many cubic m of soil must be dug to make a well 20 m deep and 2m in diameter . If the curved surface of the well is to be plastered at a rate of Rs. 50/meter square , find the cost of plastering?