Question

there were 25 teachers in a school whose mean age was 30 years.A teacher retired at the age of 60 years and a new teacher was appointed in his place.The mean age of teachers in the school was reduced by one year.The age of the new teacher was​

Answer 1

Answer:

The age of the new teacher is 35

Step-by-step explanation:

there are 25 teachers,their average age is 30 years.the total sum of the ages of 25 teachers is 750.

let the sum of the ages of 25 teachers is x.

then,x÷25=30

therefore x=750

A teacher with 60 years age was retired so the sum of the remaining teachers age is 690.

a teacher was joined in place of retired teacher.

because of new teacher the mean age is reduced by 1 year it means 29.

now to calculate the sum of the ages.Lets assume the ages of all teachers is y.

y÷25=29 therefore y=725.

the age of the new teacher is 725-690

=35

Answer 2

Answer:

35 was the age of new teacher hope it helps...

mark my answer is brainliest