A) Rs. 360
B) Rs. 810
C) Rs. 900
D) Rs. 1800
Correct Answer: C
Solution :
[c] Area of field \[=\frac{1215}{135}=9\]hectare or \[90000\text{ }{{m}^{2}}\] \[\therefore \]Side of field \[=\sqrt{90000}=3000\,m\] Perimeter of field \[=4\times 300\] \[=1200\,\,m\] Now, cost of putting a fence around field \[=1200\times \frac{75}{100}=\text{Rs}.900\] |
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