Discussion
A rectangular field measures 60 m by 40 m. What is the cost of fencing it at Rs. 25 per metre ?
Answer: B
Correct answer: Rs. 5000
Fencing follows the perimeter, not the area.
\[\text{Perimeter} = 2(60 + 40) = 200 \text{ m}\]
\[\text{Cost} = 200 \times 25 = \text{Rs. } 5000\]
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