Question

The ratio of age of a 3 years ago and age of b 5 years ago was 4:5. If a is 4 year younger than b then what is the present age of b

Answer 1

Age of B = X

Age of A= X+5

5 years ag , the ratio was 2:3 ( I reversed the ratio cuz I took B first)

2/3 = X/X+5

Now by cross multiplying

2(X+5)=3X

=> 2X + 10 = 3X

=> X = 10

Answer 2

Heya....

Age of B is .. X
Age of A is.. X+ 5

5 years ago,, ration is...
2:3...

Now ,,

2/3= X/ X+5

Cross multiplying this....

2(x+5) =3x

2x +10 = 3x
x = 10....

-- Be Brainly...