Question 1042567

Plz hlp me solve this question  in a cls the ratio of boys and girls is 4:5.half of boys and half of girls participated in the youth festival.1/6 ie. 30 of the total student population participated in ncc camp. What is the no of girl student in the cls?
<pre>If {{{1/6}}} represents 30 students, then there are 180 students
4x + 5x = 180
9x = 180
x = {{{180/9}}}, or 20
Therefore, there are: 5(20), or {{{highlight_green(matrix(1,2, 100, girls))}}}