Question

The average age of a teacher and three
students is 20 years. If all the three
»
students are of same age and the
chifference between the age of the
teacher and each student is 20 years,
then what is the age of the teacher?​

Answer 1

Step-by-step explanation:

Let the age of each student be x years

Then, the age of teacher will be (x+20) years

Mean age =

4

(x+20)+3x

20=

4

(4x+20)

⇒x=15

Hence, age of the teacher =35 years

Hope it helps..

Answer 2

Answer:

I HOPE THIS WILL HELP YOU....

PLSSSSS MARK AS BRAINLIEST...

Step-by-step explanation:

Let the age of each student be x years

Then, the age of teacher will be (x+20) years  

Mean age =  

4

(x+20)+3x

​20=  

4

(4x+20)

⇒x=15

Hence, age of the teacher =35 years