The average age of a 52 members of a village is 32 yrs. If the age of the youngest member be 7 yrs.,

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08 Mar 2021 AVERAGE

The average age of a 52 members of a village is 32 yrs. If the age of the youngest member be 7 yrs., then what was the average age of the village at the birth of the youngest member?

OPtion

1) 25 yrs.
2) 23.6 yrs.
3) 24.48 yrs.
4) 23.85 yrs.
5) 22.46 yrs.
6) 21.80 yrs.
7) 24.66 yrs.
8) 26.50 yrs.
9) 28 yrs.
10) None of the above

Solution

Total ages of all members
= 52 x 32 = 1664 yrs.
7 yrs. ago, total sum of ages = 1664 – (52 x 7) = 1300 yrs.
But at that time there were 51 members in the family.
Average at that time
= 1300/51 = 25.49 yrs.
Hence option 10.(None of the above) is the correct answer.

Correct Option: 10 Best Solution (0)