Question

The ages of A and B are in the ratio 5:7. Eight years ago, their ages were in the ratio of 7:13. Find the ratio of their age after 5 years.​

Answer 1

Step-by-step explanation:

Let age of A and B be 5x and 7x respectively.

According to the question-

7x−8

5x−8

=

13

7

13(5x−8)=7(7x−8)

65x−104=49x−56

⇒65x−49x=104−56

⇒x=

16

48

=3

Therefore,

Present age of A=5×3=15 years

Present age of B=7×3=21 years