The average age of a class of 25 students is 26 years. The average increased by 1 when the teacher's age also included. What is the age of the teacher?	Choices.
A) 40 B) 41 C) 52 D) 62 E) 73
Total age of all students =25Ã—26   Total age of all students + Age of the teacher =26Ã—27   Age of the teacher   =27Ã—26âˆ’25Ã—26=26(27âˆ’25)=26Ã—2=52   Answer is 52.
<result>C</result>
The average age of a class of 25 students is 26 years. The average increased by 1 when the teacher's age also included. What is the age of the teacher?