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In an examination, $40 \%$ of candidates got second class When the data are represented by a pie chart, what is the angle corresponding to second class'
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The correct answer is:
$144^{5}$
First, convert $40 \%$ into fraction
$40 \%=\frac{40}{100}=\frac{2}{5}$
Angle $=\frac{2}{5} \times 360=144^{\circ}$
$40 \%=\frac{40}{100}=\frac{2}{5}$
Angle $=\frac{2}{5} \times 360=144^{\circ}$
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