Question

Rahul Rahul and Lakshmi is in ratio, 5:7 after 4 years later the sum of their ages will be 56 years find the present ages

Answer 1

Let the age of laxmi be 7x
and rahul age be 5x
ATQ
after three year the sum of their age is 56
Then,
(5x+4)+(7x+4)=56
5x+4+7x+4=56
12x+8=56
12x=56-8
x=48÷12
x=4
so,the current age
age of rahul=5x=5×4=20 years
age of laxmi=7x=7×4=28 years

Answer 2

Age of rahul = 5x
Age of lakshmi = 7x
After 4 years, age of rahul and lakshmi are 5x+4 and 7x+4 respectively
And the sum is equal to 56
5x+4+7x+4=56
12x=48
x=4
Then age of rahul = 5x =5*4=20
Age of lakshmi = 7x =7*4=28
Hope this will help you mate ☺️