Question

the average age of 30 boys in a class is 16 if the class teacher age is included the average increases by 1 what is the class teacher age?​

Answer 1

Answer:

47

Step-by-step explanation:

Now total ages of boys =30*16=480

let the age of class teacher be 'x' .

Now we get (16+1)=(480+x)/31

so, 17*31=480+x

so, x=527-480

so, x=47.

That's a little old.