Question

In a class of 80 students, the number of boys and girls are in the ratio 2:3 .the number of students who passed to those who failed are in the ratio 5:3 .what is the least ratio of the number of boys who passed totoro the number of girls who passed

Answer 1

Answer:

1;24

Step-by-step explanation:

No. Of boys = 80*2/(2+3) = 160/5 = 32

No. Of girls = 80-32 = 48

No. Of students passed = 80*5/(5+3) = 400/8 = 50

We need least ratio of passed boy to passed girls.

A fraction p/q is least when p is least and q is greatest.

So assume that all girls passed the exam.

So here q= 48

We know p+q = 50.

So p= 2

p:q=2:48=1:24