Question

3/5 of total number of students in a school are girls
1. what fraction of the students are boys?
2.of there are 164 boys,how many are girls?
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Answer 1

Answer:

no idea

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Answer 2

Answer:-

• Fraction of girls=3/5

$\\ \sf\longmapsto Fraction\:of\:boys=1-\dfrac{3}{5}$

$\\ \sf\longmapsto Fraction\:of\:boys=\dfrac{5-3}{5}$

$\\ \sf\longmapsto Fraction\:of\:boys=\dfrac{2}{5}$

• Let 1/5=x

Thus

• Boys=2x
• Girls=3x

ATQ

$\\ \sf\longmapsto 2x=164$

$\\ \sf\longmapsto x=\dfrac{164}{2}$

$\\ \sf\longmapsto x=82$

$\\ \sf\longmapsto 3x=82(3)$

$\\ \sf\longmapsto Number\:of\:Girls=246$