A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 65 years, that of the parents is 45 years and that of the grandchildren is 8 years. What is the average age of family?  Choices
A) 6/7years	B) B)31	C) C)30	D) D)33	E) E)35
Required average   = (65 x 2 + 45 x 2 + 8 x 3 )/(2 + 2 + 3)   = (130 + 90 + 24)/7   =244/7   = 34 6/7years.   6/7yearsnswer is 6/7years
<result>A</result>
A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 65 years, that of the parents is 45 years and that of the grandchildren is 8 years. What is the average age of family?