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
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sum of ages=25*16=400
sum of ages of 24 students=4*15=360
age of teacher=400-360
sum of ages of 24 students=4*15=360
age of teacher=400-360
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14
Answer:
Step-by-step explanation:
Given the average age of 24 students and the class teacher is 16 years.
Let age of the teacher = x
Sum of ages of 24 students and teacher = 25 × 16 = 400
If age of the teacher excluded ,
Number of students = 24
sum of the the ages of 24 students = 400-x
Therefore,
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