"In a family, the average age of a father and a mother is 35 years. The averag
Channel: Doubtnut
Date: 2020-04-05

"In a
 family, the average age of a father and a mother is 35 years. The average age
 of the father, mother and their only son is 27 years. What is the age of the
 son?
(a) 10
 years (b) 10.5 years (c) 11 years (d) 12 years"