Five and half years ago the age of two brother are in the ratio of 4 : 5. Two and half years later their ratio will be 6 : 7. Find the present age of younger brother.
1
21.5 years
2
22.5 years
3
21 years
4
22 years
5
23 years
Five and half years ago the age of two brother are in the ratio of 4 : 5. Two and half years later their ratio will be 6 : 7. Find the present age of younger brother.