Question

The average age of 26 children and their teacher's age are 22 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?

A 42 years Correct Answer Incorrect Answer
B 47 years Correct Answer Incorrect Answer
C 45 years Correct Answer Incorrect Answer
D 48 years Correct Answer Incorrect Answer
E 46 years Correct Answer Incorrect Answer

Solution

Sum of the age of total children and teacher = 27 times; 22 = 594 Sum of the age of children after excluding = 26 times; 21 = 546 Teacherrsquo;s age = 594 ndash; 546 = 48 years

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