3 years ago, the avg age of a family of 5 individuals was 17. A kid have been born the avg age of family is an exact today? What is the age of the kid?  Choose the correct choice.
A) 2 years	B) 5 years	C) 6 years	D) 4 years	E) 7 years
2 years   2 years   Current age of 5 individuals is,   =5 x 17 + 3 x 5 = 100 years   2 yearslso, current ages of 5 persons + 2 yearsge of the kid   = 6 x 17 = 102 years   Therefore, 2 yearsge of the Kid = 102 – 100 = 2 years.
<result>A</result>
3 years ago, the avg age of a family of 5 individuals was 17. A kid have been born the avg age of family is an exact today? What is the age of the kid?