Multiple Choice Questions on The average age of 34 boys in a class is 14 years If teacher rsquo s age is included the ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The average age of 34 boys in a class is 14 years If teacher rsquo s age is included the ...........

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     The average age of 34 boys in a class is 14 years. If  teacher’s age is included, the average age of the boys and the teacher becomes 15. What is teacher’s age?

    48 years

    Incorrect Answer

    46 years

    Incorrect Answer

    49 years

    Correct Answer

    45 years

    Incorrect Answer
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    Explanation:

    Let the age of the teacher is T years.

    So the required age is given as:-
    (34 × 14 + T)/35 = 15
    T = 49 years.

    By: Deepak Dawra
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