There are 12 teachers in a school. If the average age of the teachers is 36, what will be the new average age if a 30 year old teacher joins the school?
Choose the correct choice from the following:
A) 35.54
B) 34.52
C) 32.3
D) 35
E) 34.44
(sum of the 12 ages)/12 = 36   sum of the 12 ages = 432   new sum = 432+30= 
<gadget id="calculator">432+30</gadget>
<output>462</output>
462   new average= 462/13 = 35.54   ans: 35.54
<result>A</result>
There are 12 teachers in a school. If the average age of the teachers is 36, what will be the new average age if a 30 year old teacher joins the school?