Question

In a class of 30 students and the class teacher the average age together is 16 years. If the class teacher age is subtracted the average age reduces by 1; what is the age of the class teacher?​

Answer 1

Answer:

31yrs

Step-by-step explanation:

let age of teacher= x

let sum of ages of children be y

acc to ques.

(x+y) / 31 = 16

x+y=496

x/31= 15

x=465

465+y=496

y=31

therefore age of teacher is 31 yrs