Question

the average age of a class of 35 students is 14 years. lf teacher age is included the average increase by one year. what is the age of the teacher

Answer 1

Answer:

Step-by-step explanation:

Average age of 35 students=14

Teacher included = (14+1) = 15

A/q,

35=14 or 36=15

x/35=14 or y/36=15

x=490 or y=540

NOW;

540-490=50 YEARS

YOUR ANSWER WILL BE : 50 years

Answer 2

Answer:

50 years.

Step-by-step explanation:

The average age of a class of 35 students is 14 years.

Average = (sum of all observations)/(number of observations)

Average = (sum of all ages)/(number of people)

14 = (sum of all ages)/35

490= Sum of ages

We are given that lf teacher age is included the average increase by one year.

So, new average = 15 yeras.

Number of people = 36

So, 15 = (New sum of all ages)/36

540 = New sum of all ages.

So, teacher's age = new sum - old sum

                            = 540 - 490

                            = 50

Hence the age of teacher is 50 years .