10 years a go the average age of all the 25 teachers of the girls coll – InterviewSolution

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1.	10 years a go the average age of all the 25 teachers of the girls college was 45 years. 4 years a go the principal has retired from her post at the age of 60 year. So after one year a new principal whose age was 54 years recruited from outside . The present average age of all the teachers is if principal is also considered as a teacher:
Answer» 54(18/25)years 55(17/25) years 49(1/2) years none of these Answer :A

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