Question

Average of 36 students in a class is 17 years. When a teacher enters in the class average increases by 1 year. Find the average age of teacher.

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

total age of students = 36×14=612 years

let teacher age be x

after including techer average age = 17+1=18

total age of students after including teacher = 37× 18=666

612+x=666

x=666-612

x= 54 years