A) 25 m
B) 50 m
C) 75 m
D) 100 m
Correct Answer: A
Solution :
[a] Let the length and breadth of the field be 4 x m and 3xm respectively. Area of field \[=\frac{1}{12}\] hectare \[3x\times 4x=\frac{1}{12}\times 10000\,sq\,m\] \[\Rightarrow \] \[{{x}^{2}}=\frac{10000}{144}sq\,m\] \[\Rightarrow \] \[x=\frac{100}{12}\,m\] \[\therefore \]Breadth of field \[=3x\] \[=3\times \frac{100}{12}=25\,m\] |
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