Priti Sambhudas Asked a Question
June 9, 2021 1:51 pmpts 30 pts
Example 18 : 10 years ago the average age of all the 25 teachers of the Girls college was 45 years. 4 years ago 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 18 (A) 5425 years (B) 5525 years (C) 49 years (D) None of these
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  • Avijeet banerjee thankyou
    option (A) is correct. explanation is given in the attachment.
    • cropped800720324636472941.jpg
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    Priti Sambhudas
    how the ages of principals 66 and 59
  • Alka gupta
    ansA...
    • cropped270821619257240244.jpg
    • cropped1492401897465629151.jpg
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