Question

Gud evei❤️


8. How many cubic metres of earth must be dugout to sink a well 21 m deep and 6 m diameter? Find the cost of plastering the inner surface of the well at Rs 9.50 per m².​

Answer 1

Hope's it help u .........

Answer 2

Answer:

Good evening...

Here is your answer

Step-by-step explanation:

We have,

h=21m and r=3m

∴ Volume of earth=πr^2 h= 22÷7 ×3 ^2

21m=594m ^3

Cost of plastering =Rs. (594×9.50)=

Rs. 3762.

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