Question

if 15 student average age is 19 and if teacher age is included thier average age will be 22 what is the teacher age

Answer 1

Hey.

Here is the answer.

total age of students = 15×19 = 285

total age of students along with teacher = 16×22 = 352

So, age of teacher = 352 - 285 = 67 yrs

Thanks .

Answer 2

Hi good morning !!!

Here is ur answer !!!

Total sum of ages of students = 15×19

= 285

The teacher age included

New mean = 22

sum = 22×16

= 352

Teacher's age = 352-285

= 67 years

Hope it helps u : )