In a college the average age of students of a class is 15 8 years The average age of boys in the cla......

In a college, the average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of number of boys to the number of girls in the class is ?

Number of boys = x
Number of boys = y
(x*16.4 + y*15.4)/x + y = 15.8
16.4x + 15.4y = 15.8x + 15.8y
0.6x = 0.4y
x:y = 2:3

By: Manpreet kaur