"The average age of 3 children in a family is 20% of the average age of the father a
Channel: Doubtnut
Date: 12/04/2020

"The average
 age of 3 children in a family is 20% of the average age of the father and the
 eldest child. The total age of the mother and the youngest child is 39 years.
 If the father’s age is 26 years, what is the age of the second child?
(a) 15
 years (b) 18 years (c) 20 years (d) Cannot be determined"