Question

The ration of the number of boys to girls in a school is 2:5. If there are 350 students in the school, find the number of girls in the school

Answer 1

Answer:

2x * 5x=350

10x=350

x=350

10. =35

no.of boys =35*2=70

no. of girls=35*5. =175

Answer 2

Given :

• Ratio of the number of boys to girls in a school is 2:5.
• Total no. of students in school = 350

To Find :

• Number of girls in the school.

Solution :

$\longmapsto\tt{Let\:no.\:of\:boys\:be=2x}$

$\longmapsto\tt{Let\:no.\:of\:girls\:be=5x}$

$\longmapsto\tt{Total\:Students=350}$

A.T.Q :

$\longmapsto\tt{2x+5x=350}$

$\longmapsto\tt{7x=350}$

$\longmapsto\tt{x=\cancel\dfrac{350}{7}}$

$\longmapsto\tt\bold{x=50}$

Therefore :

$\longmapsto\tt{No.\:of\:boys=2(50)}$

$\longmapsto\tt\bold{100}$

$\longmapsto\tt{No.\:of\:girls=5(50)}$

$\longmapsto\tt\bold{250}$

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VERIFICATION :

$\longmapsto\tt{2(50)+5(50)=350}$

$\longmapsto\tt{100+250=350}$

$\longmapsto\tt\bold{350=350}$

HENCE VERIFIED