Question

kindly solve the Question

Average age of 15 student of a class is 11 year if the teacher is also include the average age become 13 year How old the teacher
A, 46 year
B, 43 year
C, 49 year
D, 39 year​

Answer 1

Answer:

option B

Step-by-step explanation:

if you need explanation give five stars

Answer 2

Answer:

Step-by-step explanation:

Here,

Sum of ages of students=p

No of people=n

Therefore

p/n=11

p/15=11

p=165

Now,

Let the age of teacher be x

Sum of total ages of teacher is also added=165+x

Average age =(165+x)/(p+1).

13=(165+x)/16

208=165+x

43=x