What is yours but other use it more than you?

Question

Ramesh says to his son Girish, "My age was two years more than 7 times of your's age before 30 and 1/2 a year and after 2 and 1/2 a year, my age will be twice of yours age of 1/2 a year before". What will be the age of Girish after 12 and 1/2 a year.

Answer 1

Most Suitable solution is : Our Name

Answer 2

your name we use it while filling our information only