In a class, there are 40 students and their average age is 15 years. if the age of the teacher is included, then the average becomes 16 years. the age of the teacher is
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40 students avg=15
total age of all students=40*15=600
if the age of the teacher invluded
total number of person=40+1=41
now Avg age of all 41 person=16
total age=41*16=656
Age of teacher=656-600=56
hopes it will help u!!!!!
total age of all students=40*15=600
if the age of the teacher invluded
total number of person=40+1=41
now Avg age of all 41 person=16
total age=41*16=656
Age of teacher=656-600=56
hopes it will help u!!!!!
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