Question

The mean of the age of three students Vijay , Rahul and Rakhi is 15 years . If their ages are in the ratio 4:5:6 respectively , then find their ages.

Answer 1

4x+5x+6x=15
14x=15
x=15/14
x after getting answer multiply it with each no. of ratio

Answer 2

Let their age ratio to be x
so their age = 4x ,5x ,6x
(4x+5x+6x)/3 =15
15x=15 ×3
x =3
so age of Vijay = 4×3 =12
age of Rahul = 5×3 =15
age of Rakhi = 6×3 =18