Question

Mean age of 25 members of a club was 38 years. if 5 members with mean age of 42 years have left the club, what is the present mean age of the club members?​

Answer 1

Answer:

Sum of ages 25*38= 950

Sum of 5 members who left 42*5 = 210

Remaining sum of ages = 950-210= 740

Remaining members of club 25-5= 20

Present mean = 740/20

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