Aptitude - Average - Discussion
Discussion Forum : Average - General Questions (Q.No. 2)
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?
Answer: Option
Explanation:
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Video Explanation: https://youtu.be/OXLnoItd0MA
Discussion:
69 comments Page 3 of 7.
Siddhant said:
9 years ago
In question they mention that 2 parents and 2 grandparents, parents mean father and mother both, then why 67 and 35 are multiplied by 2, why not 4. Because there are 2 parents.
Stalin said:
1 decade ago
In this problem mention two grandparents (i.e. two grandfather and two grand mother) then how it come total member in this family is 7?
I think total member is 11 explain me.
I think total member is 11 explain me.
RASHMI PODDAR said:
1 decade ago
Parents are grandparents means 2 people then 2 grandparents are parents means 4 nd 4 people respectively then how its here only 2 people for grandparents and parents?
Sridevi said:
10 years ago
Family = Two grand parents = 2*67 = 134, two parents = 2*35 = 70, three grand children = 3*6 = 18.
After started in 134+70+18. Total members: 222/7 = 31.5/7.
After started in 134+70+18. Total members: 222/7 = 31.5/7.
Mkr said:
1 decade ago
Question says A family, so I think in a family there will be one grandpa and granny and also there will be only one mom and one dad. So answer is right.
Ravisinh mori said:
8 years ago
How total person 7 in a family?
Total person is 11 because 2 grandparents = 4person, 2 parents = 4person, 3children so total is 11 instead of 7.
Total person is 11 because 2 grandparents = 4person, 2 parents = 4person, 3children so total is 11 instead of 7.
Pavithra UH said:
6 years ago
In the question they have already given as average age of grandparents and so on. So why should we multiply that by 2 again? Please, tell me.
(9)
Arvind said:
9 years ago
Can we add all the avgs and divide by 3?
The avg of grandparents, grandchildren and parents are given
67 + 35 + 6/3 = 36.
Am I right?
The avg of grandparents, grandchildren and parents are given
67 + 35 + 6/3 = 36.
Am I right?
Eric said:
1 decade ago
When already the avg ages of grandparents, parents and children are given! why they have been multiplied by 2, 2 and 3 respectively?
Moreshwar pidadi said:
1 decade ago
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.
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