Question

There are six friends. The sum of the ages of all the friends is 126. If the sum of the ages of
elder 3 friends is 5/4 times that of the younger 3, then sum of the ages of younger 3 is

Answer 1

let age of elder 3 friends=x and younger=y

A T Q

x+y=126..... eq1

5/4x=y

put value of y in eq 1

-->x+5/4x=126

-->x=56