A well 2 m in radius and 14 m deep is to be dug The cost of digging the well at Rs.1.20 per
cubic meter is
A) Rs. 112.20
B) Rs.110.20
C) Rs.220.10
D) Rs.211.20
Answers
Answered by
3
Answer
(D) ₹ 211.2
Solution
Volume should be dug out and well is in shape of cylinder
The volume of cylinder is equal to pi*r square* height
=22/7*2*2*14
=176 m cube
Now the rate of digging is₹ 1.2
176 * 1.2= 211.2
(D) ₹ 211.2
Solution
Volume should be dug out and well is in shape of cylinder
The volume of cylinder is equal to pi*r square* height
=22/7*2*2*14
=176 m cube
Now the rate of digging is₹ 1.2
176 * 1.2= 211.2
Similar questions