In a class of 50 where the ratio of girls to boys is 3:2 . Sonika , a girl 30th from the top. If there are 16 girls ahead of her then, how many boys are after her?
Answer & explanation
Correct answer: option 4
Ratio of girls to boys is ,
B : G
i.e. 2 : 3
Total number of students =
B = \(\frac{2}{5}\) × 50 = 20
B= 20 ( number of boys)
G= 30 ( number of girls )
Now,
Sonika is 30th from top and 15 girls are ahead of her . Till 30 there are 16 girls .
That means there are 14 boys ahead of her .
So, number of boys after Sonika = total number of boys - number of boys ahead of her
= 20 - 14 = 6