A) 96 \[{{m}^{2}}\]
B) 108 \[{{m}^{2}}\]
C) 90 \[{{m}^{2}}\]
D) 60 \[{{m}^{2}}\]
Correct Answer: A
Solution :
(a): (length +1) (breadth +1) = A + 2 length \[\left( 1+1 \right)\left( b-1 \right)=A-5\] \[1b+1+b+1=A+21\] ....(I) \[1b-1+b-1=A-5\] .....(II) \[(I)-(II)\] \[\Rightarrow 21+2=26\] \[\Rightarrow lenth=12\]You need to login to perform this action.
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