The average age of a class of 42 students is 16 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:
A) 45 Years B) 46 Years C) 59 Years D) 52 Years E) 54 Years
Total age of students is 42X16 = 672 Years Total age inclusive of teacher = 43X (16+1) = 731 So, Teacher's age is 731-672= 
<gadget id="calculator">731-672</gadget>
<output>59</output>
59 Yrs There is a shortcut for these type of problems Teacher's age is 16+(43X1)= 59 Years Answer : 59 Years
<result>C</result>
The average age of a class of 42 students is 16 yrs. if the teacher's age is also included, the average increases by one year. Find the age of the teacher