Aptitude - Average - Discussion
Read more: "It takes a very long time to become young."
- Pablo Picasso
2.
A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family?
[A]. [B]. [C]. [D]. None of these
Answer: D
Explanation:
Required average
=
67 x 2 + 35 x 2 + 6 x 3
2 + 2 + 3
=
134 + 70 + 18
7
Anonymous said:
(Fri, Oct 7, 2011 05:35:50 PM)
In the answer how 5 comes can someone tell me.
Sanjana said:
(Thu, Oct 13, 2011 12:18:30 PM)
It's remainder.
Moreshwar Pidadi said:
(Mon, Nov 21, 2011 02:46:36 AM)
No because in question it is givven an avarage an no. Of person so answer seams to be correct an each age is being taken out.
Eric said:
(Tue, Jan 24, 2012 10:38:30 AM)
When already the avg ages of grandparents, parents and children are given! why they have been multiplied by 2, 2 and 3 respectively?
