Question

the ages of Rahul and Lakshmi are in the ratio of 5:7years later the sum of the ages will be 56 years what are their present ages

Answer 1

let Rahul age=5x and Lakshmi age = 7x
sum= 56
5x+7x=56
12x=56
x=56/12
so we get x as 4.6 and by multiplying it to 5 and 7 we get their ages