Question

The ratio of ages of rahul and sonker is 3:4 , 4 years ago the ratio was 5:7. find the present age of rahul and how much he is less than sonker?

Answer 1

hope this answer will help you!

Answer 2

Answer:

8

Step-by-step explanation:

Let the common ratio of the present age of Rahul and Sonker be x.

Then the present age of of Rahul=3x and Sonker=4x.

Now, 4 years ago the age of Rahul was 3x-4 and Sonker was 4x-4.

By the given condition,

3x-4:4x-4 :: 5:7

or, (3x-4)7=(4x-4)5

or, 21x-20x=-20+28

or, x=8years

The present age of Rahul is 3*8=24 and Sonker is 4*8=32.

Hence Rahul is 32-24=8 years elder than Sonker.