Multiple Choice Questions on The Average age of 16 persons and a class teacher is 45 years When the teacher leaves the group The ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The Average age of 16 persons and a class teacher is 45 years When the teacher leaves the group The ...........

Quantitative Aptitude ( CCS) Average
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    The Average age of 16 persons and a class teacher is 45 years. When the teacher leaves the group, The average comes down to 43 years. What is the age of the teacher ?

    90 years

    Incorrect Answer

    86 years

    Incorrect Answer

    77 years

    Correct Answer

    80 years

    Incorrect Answer
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    Explanation:

    Required age = 17×45 - 16×43 = 77 years

    By: Kritika Kaushal
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