Multiple Choice Questions on The average of 11 results is 50 If the average of first 6 results is 49 and that of last 6is 52 find........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The average of 11 results is 50 If the average of first 6 results is 49 and that of last 6is 52 find...........

Quantitative Aptitude ( CCS) Average
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    The average of 11 results is 50. If the average of first 6 results is 49 and that of last 6is 52, find the sixth result?

    55

    Incorrect Answer

    56

    Correct Answer

    65

    Incorrect Answer

    62

    Incorrect Answer
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    Explanation:

    The total of 11 results = 11 x 50 = 550
    The total of first 6 results = 6 x 49 = 294
    The total of last 6 results = 6 x 52 = 312
    The sixth result is common to both:
    Sixth result = 294 + 312 – 550 = 56

    By: Sandeep Dubey
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