Multiple Choice Questions on The average of 11 results is 50 The average of the first 6 results is 49 and that of the last 6 resu........... for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

The average of 11 results is 50 The average of the first 6 results is 49 and that of the last 6 resu...........

Quantitative Aptitude (RRB NTPC) Average
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    The average of 11 results is 50. The average of the first 6 results is 49 and that of the last 6 results is 52. What is the 6th result?

    48

    Incorrect Answer

    51

    Incorrect Answer

    56

    Correct Answer

    49

    Incorrect Answer
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    Explanation:
    Sum of all = 50×11
    Sum of first 6 = 49×6
    Sum of last 6=52×6
    6th term = 49×6+52×6–50×11
    = 294+312–550
    =606–550
    =56

    By: Barka Mirza
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