A) \[50\,m\]
B) \[100\,m\]
C) \[600\,m\]
D) \[80\,m\]
Correct Answer: B
Solution :
(b): length that the boy ran = Perimeter of rectangular field\[=2\times (1+b)=2\times (30+20)=100\,m\]You need to login to perform this action.
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