The ages of Rahul and Haroon are in the ratio 5:7. Four years later the sum of their ages will be 56 years. What are their present ages?

Dear Student

Let the ages of Rahul and Haroon be 5x and 7x.
Four years later,
The ages of Rahul and Haroon will be (5x + 4) and (7x + 4) respectively. According to the question,
(5x+4)+(7x+4)=56
⇒5x+4+7x+4=56
⇒12x+8=56
⇒12x=56-8
⇒12x=48
⇒x=48/12
⇒x=4
Therefore, Present age of Rahul = 5x = 5×4 = 20
And, present age of Haroon = 7x = 7×4 = 28

Thanks