16. One year ago the ratio between Samir and Ashok�s age was 4:3. One year henece the ratio of their age will be 5:4 What is the sum of their present ages in years?

17. Ratio of Ashok�s age to Pradeep�s age is equal to 4:3 Ashok will be 26 years old after 6 years. How old is Pradeep now?

18. The ratio of the age of father and son at present is 6:1. After 5 years the ratio will become 7:2. The present age of the son is: