Question

20 years ago when my parents got married their average age was 23 years. Now the average age of my family consisting of myself and my parents only is 35 years. find my present age

Answer 1

Average age of your parents( 20 years ago) = 23
Age of your parents = 23*2 + 40
Age of your parents = 86 at present

Average age of family (present) = 35
Age of your family = 35*3
Age of your family = 105
Your age = 105-86
Your age = 19

Your present age is 19 years...