Question

8. In a school the ratio of girls to boys is 9 : 11. If the total number of students in the

school is 1940, then find the number of boys and girls in the school?​

Answer 1

Solution

Given -

• Ratio of boys & girls = 9 : 11
• Total Number of student = 1940

Find :-

• Number of boys & Girls

Explanation

For Boys

==> Number of boys in schools = 11 × 1940/20

==> Number of boys in schools = 11 × 97

==> Number of boys in schools = 1067

Now, For girls

==> Number of girls in schools = 9 × 1940/20

==> Number of girls in schools = 9 × 97

==> Number of girls in schools = 873

Hence

• Number of girls in school = 873
• Number of boys in schools = 1067

_____________________

Verification

Total Number of student in schools = 1940

==> Number of boys + Number of Girls = 1940

==> 1067 + 873 = 1940

==> 1940 = 1940

L.H.S. = R.H.S.

That's Proved.

_________________

Answer 2

Answer:

boys = 873 and girls = 1067

Step-by-step explanation:

given ratio = 9 : 11

so, we can write, ratio = 9x : 11x

boys = 9x

girls = 11x

we have,

        total number of students = 1940

            9x + 11x = 1940

              20x = 1940

                 x = 97

so,

    number of boys = 9 * 97 = 873

    number of girls = 11 * 97 = 1067