A) Rs. 13090
B) Rs. 130900
C) Rs. 1309
D) Rs. 13000
Correct Answer: B
Solution :
Radius of inner circle =\[\frac{112}{2}\]= 56 m Radius of outer circle = 63 m Area of path = Area of outer circle ? Area of inner circle \[=\pi \left[ {{(63)}^{2}}-{{(56)}^{2}} \right]=\frac{22}{7}\times 119\times 7\] \[=2618\,{{m}^{2}}.\] Cost of constructing the path at Rs. per sq. m \[=~2618\times 50=Rs.\,\,130900\]You need to login to perform this action.
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