Question

In a co-education school 45% of the total student are girls .if there are 440 boys in the school, find the no of girls in the school

Answer 1

45 % = x / 440 * 100

x = 45 * 440 / 100
x = 180

Answer 2

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percent of girls=45%

percent of boys=55%

number of boys =440

$1\% \: of \: girls = \frac{440}{55}$

$= > \frac{8}{1} = 8$

$45\% \: of \: girls \: = 45 \times 8$

$= 360$

therefore the number of girls in the school=360

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