A) 96
B) 129
C) 143
D) 144
Correct Answer: C
Solution :
Let length \[=x\,\,\text{cm}\] and breadth \[=(x-2)\,\,\text{cm}\] So, \[2\,\,[x+(x-2)]=48\]\[\Rightarrow \]\[4x-4=48\] \[\Rightarrow \]\[x=\frac{52}{4}=13\] \[\therefore \] Length =13 cm and breadth =11 cm Here, area \[=l\times b=13\times 11=143\,\,\text{c}{{\text{m}}^{2}}\]You need to login to perform this action.
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