In a school, the ratio of boys to girls is 7 : 11. If there are 3420 students in the school, then how many girls are there in the school? (There are only boys and girls in the school.)
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 2090.
The ratio of boys to girls is 7 : 11
Let the number of boys and girls be 7x and 11x.
According to the question;
Total students = 3420
⇒ 7x + 11x = 3420
⇒ 18x = 3420
⇒ x = 190
The number of Girls in the school = 11x = 2090