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    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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