The ratio indicates the difference in the number of boys and girls in the school, and the total number of students in the school. Hence, the total number of students in the school is 1240.
Given information:
The ration of number of boys [tex]B[/tex] to the number of girls [tex]G[/tex] in the school is 11:9
The difference between the number of boys and girl in the school is 124
According to the question, the difference in the number of boys and girls in term of ratio is given as [tex]11-9=2[/tex],
And in terms of number the difference between boys and girls is 124.
As the term 124 indicates the value 2 in the ratio, the value of 1 part is,
[tex]124/2=62[/tex]
Now, the total number of students in the school will be the sum of number of boys and girls in the school, so in terms of ratio the total number of students is, [tex]11+9=20[/tex]
So, the number of students [tex]S[/tex] in the school is,
[tex]S=20\times 62\\S=1240[/tex]
Hence, total number of students in the school is 1240.
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