The average age of a class of 40 students is 15 yrs. if the teacher's age is also included, the average increases by one year. Find the age of the teacher
Choose the correct choice from the following answers
A) 30 Years
B) 56 Years
C) 32 Years
D) 34 Years
E) 49 Years
Total age of students is 40X15 = 600 Years   Total age inclusive of teacher = 41X (15+1) = 656   So, Teacher's age is 656-600= 
<gadget id="calculator">656-600</gadget>
<output>56</output>
56 Yrs   There is a shortcut for these type of problems   Teacher's age is 15+(41X1)= 56 Years   56 Years
<result>B</result>
The average age of a class of 40 students is 15 yrs. if the teacher's age is also included, the average increases by one year. Find the age of the teacher