Question

Rohan is younger than rohit by 4 years. If their ages are in the respective ratio of 7:9,how old is rohan?

Answer 1

Let Rohan be x

And Rohit be y

X-4 =y

9x=7y

X-4=9x/7

X=14

Answer 2

Answer:

Let Rohit age be x years.

Then, Rohan age will be (x - 4) years.

According to Question now,

x - 4/x = 7/9

9(x - 4) = 7(x)

9x - 36 = 7x

9x - 7x = 36

2x = 36

x = 36/2

x = 18 years

Therefore,age of Rohan will be 18 - 4 = 14 years.