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Discussion

  1. The average of 10 number is calculate as 15. It is discovered later on that while calculating the average one number , namely 36 was wrongly read as 26. The correct average is ?
    1. 12.4
    2. 14
    3. 16
    4. 18.6
  1. Correct Option: C

    New sum of numbers = previous sum - 26 + 36
    =10 x 15 - 26 + 36
    = 160
    ∴ Correct Average = 160 / 10 = 16.


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