Average age of 7 persons in a group is 30 years. The average age of 5 persons of this group is 32 years, the average of the other 2 persons in a group is?
- 35 years
- 30 years
- 25 years
- 15 years
Explanation
Total age of 7 persons = 7 × 30 = 210 years
Total age of 5 persons = 5 × 32 = 160 years
Total age of remaining 2 persons = 210 - 160 = 50 years
Average of 2 persons = 50/2 = 25 years
Last verified on 06-03-2026
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- 25
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- 80 days
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