Question

Find the Present Age of B
At present the ratio between the ages of A and B is 4 : 3. After 6 years, A's age will be 26 years. What is the age of B at present?

Answer 1

as we know, 4x=A current age and 3x=B current age
4x+6=26
4x=26-6
4x=20
therefore, A's current age is 20
x=20/4
x=5

Answer 2

let x be the part of ratio
ratio=4x:3x
A's age after 6 years =26
 a's present age =20
4x=20
x=5
3x=15
therefore age of b = 15