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Question

The average age of 32 children and their teacher's age are 28 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 38 years Correct Answer Incorrect Answer
C 60 years Correct Answer Incorrect Answer
D 55 years Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

Sum of the age of total children = 33 × 28 = 924 Sum of the age of children after excluding teacher = 32 × 27 = 864 Teacher’s age = 924 – 864 = 60 years

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