Question

The ration of boy to girls in a school Is 3: 2 how many boys if they are 100 girls?

Answer 1

GIVEN :

• RATIO OF BOYS TO GIRLS IN A SCHOOL = 3 : 2
• NUMBER OF GIRLS IN A SCHOOL = 100

TO FIND :

• NUMBER OF BOYS IN THE SCHOOL

SOLUTION :

LET NUMBER OF GIRLS BE 2x AND BOYS BE 3x

NUMBER OF GIRLS = 100

$= > 2x = 100 \\ \\ = > x = \frac{100}{2} = 50$

NUMBER OF BOYS = 3x = 3(50) = 150

∴ NUMBER OF BOYS IN THE SCHOOL = 150

Answer 2

Given:

• Ratio of boys to girls in a school is 3:2.
• There are 100girls.

To Find:

• The number of boys in the school.

Answer:

Given ratio of boys is to girls is 3:2 .

And if there are 100 girls we are required to find the number of boys .

Let the number of boys be x.

Now ,Atq,

$\sf{\implies \dfrac{3}{2} =\dfrac{x}{100}}$

$\sf{\implies x =\dfrac{3\times100}{2}}$

${\underline{\boxed{\red{\sf{\leadsto x=150}}}}}$

${\underline{\underline{\purple{\sf{Hence\:there\:were\:150\:boys.}}}}}$