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What is the correct answer?
4
A rectangular plot measuring 90 metres is to be encloseed by wire fencing. If the poles of the fence are kept 5 metres apart, how many poles will be needed?
A.
55 m
B.
56 m
C.
57 m
D.
58 m
Correct Answer :
B. 56 m
$Perimeteroftheplot=2\left(90+50\right)=280m\phantom{\rule{0ex}{0ex}}\therefore Numberofpoles=\left(\frac{280}{5}\right)=56m$
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