Q13 of 14 Page 269

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. My present age is?

Let his present age be x and sum of his parents present age be P


ATQ, 20 years ago average age of parents was 23



⇒ P = 86


Present mean age of family = 35



⇒ 86 + x =105


X = 19


So, his present age is 19


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