A) Rs. 151800
B) Rs. 151852
C) Rs. 141720
D) Rs. 150500
E) None of these
Correct Answer: A
Solution :
\[\therefore \]Area of the garden\[=\pi [{{(120)}^{2}}-{{(110)}^{2}}]\] \[=\frac{22}{7}(14400-12100)\] \[=\frac{22}{7}\times 2300\,\,sq\,\,metres\] Now, required cost \[=\frac{22}{7}\times 2300\times 21=Rs.\,\,151800\]You need to login to perform this action.
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