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Question
A farmer built a fence around his square plot. He used 27 fence poles on each side of the square. How many poles did he need altogether?
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Solution
The correct option is B 104
Since each pole at the corner of the plot is common to its two sides, so we have :
Total number of poles needed =27×4−4=108−4=104.
Since each pole at the corner of the plot is common to its two sides, so we have :
Total number of poles needed =27×4−4=108−4=104.
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