. The average of 90 students of your class is 21 years. If 30 of them are over 22 years and their average age is 25 years, what is the average age of the students under 22 years.
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Answer:
25 year I think so hopeful it help you
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Answer: 19 year
Explanation:
Total age of total students is 90*21=1890 , Total age of 30 students is =25*30=750,the total age of remain student =1890-750=1140, Average age =1140/60=19year
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