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 4 of 7.
Jatin007 said:
9 years ago
No @Arvind.
The number of people is 7 so we have to divide with 7. Read the question carefully. You will find the answer.
The number of people is 7 so we have to divide with 7. Read the question carefully. You will find the answer.
Masterneeji said:
1 decade ago
@Tamilazhagan.
Parent means either mummy or daddy.
Parents means couple so we (67*2+35*2+6*3)/2+2+3 = 222/7 = 31 5/7.
Parent means either mummy or daddy.
Parents means couple so we (67*2+35*2+6*3)/2+2+3 = 222/7 = 31 5/7.
Banita said:
1 decade ago
I have the same concern of 11 memebers as parents includes 2 people, which Ankur mishra explained, please help me out!
Kraminka said:
1 decade ago
Average = Sum of total ages/No of person.
Average = 67*2+35*2+6*3/2+2+3.
= 134+70+18/7 = 222/7 = 31 5/7.
Average = 67*2+35*2+6*3/2+2+3.
= 134+70+18/7 = 222/7 = 31 5/7.
Abishekbala said:
6 years ago
Grands = 67*2=134,
Mother and Father = 35*2=70,
Child's = 6*3=18.
= 134+70+18/7,
= 222/7,
= 31.71.
Mother and Father = 35*2=70,
Child's = 6*3=18.
= 134+70+18/7,
= 222/7,
= 31.71.
(7)
Swe said:
1 decade ago
@Tamilazhagan
Yes you are correct that is the correct process and answer is none of these.
Yes you are correct that is the correct process and answer is none of these.
Harini said:
10 years ago
It's a wrong method already average of ages were given how can we count them as 7 members.
Madhav Kulkarn said:
6 years ago
2 GP(Avg age 67) ,
2 P(Avg age 35),
3 Grand CHILD(Avg age 6).
(67*2+35*2+3*6)/7(2+3+2).
2 P(Avg age 35),
3 Grand CHILD(Avg age 6).
(67*2+35*2+3*6)/7(2+3+2).
(4)
Sanjana said:
1 decade ago
It's remainder.
While we perform 222/7 quotent will be 31 nd remainder would be 5.
While we perform 222/7 quotent will be 31 nd remainder would be 5.
Bhuwaneshwaran said:
7 years ago
How taking grandchildren has 3? They haven't mentioned count of grandchildren.
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