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?
Share
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?
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
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