A) 200 m
B) 400 m
C) 500 m
D) Cannot be determined
Correct Answer: B
Solution :
[b] Let length and breadth of rectangular plot are 3x m and 2x m respectively. \[\therefore \] \[3x-2x=40\] \[\Rightarrow \] \[x=40\,m\] Hence, perimeter of plot \[=2\,(3x+2x)=10\times 40=400\,m\] |
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