Math, asked by bertingtobert4653, 1 year ago

Find the cost of sinking tube well 210 meter deep having diameter 4 metre at the rate of RS 5.50 per cubic metre

Answers

Answered by Anonymous
9
The sinking tube well is a cylinder.
h = 210m
d = 4m
⇒r = 2m
Volume of a cylinder = πr²h
⇒22/7 x 2 x 2 x 210
⇒120 x 22
∴, = 2640m³
Given rate per metre cube is = Rs. 5.5
1m³⇒⇒⇒⇒⇒Rs. 5.5
2640m³⇒⇒⇒⇒?
cross multiplying,
= 2640 x 5.5
=Rs 14520
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