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The average age of 24 students and the class teacher is 16 years.if the age of the class teacher is excluded,the average age reduces by i year.the age of

class teacher in years is


The answer should be 40.
I'm not sure that is this answer correct or not but it should be 40 only.
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Sum of ages=25*16=400
sum of ages of 24 students=4*15=360
age of teacher=400-360
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