A) 896m
B) 912m
C) 825 m
D) 756 m
Correct Answer: A
Solution :
Let the length be x m. Breadth = 50 m Now, area \[=3100\text{ }{{m}^{2}}\] \[\Rightarrow x\times 50=3100\Rightarrow x=\frac{3100}{50}=62\] \[\therefore \] Length = 62 m Perimeter \[=2(62+50)=224\text{ }m\] \[4\text{ times the perimeter =(4}\times \text{224)m=896 m}\]
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