Question

The average age of 24 boys in a class is 16. the teacher is included in the group and one boy is excluded from the group, the average increases by one. what is the age of teacher?

Answer 1

If we consider the age of each boy as 16 years, and age of teacher as 'T'
given that,
(T + b1 + b2 + ... + b23)/24 = 17
but b1 = b2 = ... = b23 = 16
[T + (23*16)] = 17*24
T + 368 = 408
T = 40 years

Answer 2

Step-by-step explanation:

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