What will be Excluded Number? If

The mean of five numbers is 18. If one number is excluded, their mean is 16. The excluded number is :

  1. 25
  2. 26
  3. 27
  4. 30
vijay Professor Asked on 2nd August 2015 in Maths.
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  • 1 Answer(s)

    Answer:  (2) 26
    Explanation:-
    The mean of five numbers = 18
    Then, the sum of five numbers = 18 x 5 = 90

    One new number is excluded.
    Then, the new mean = 16
    The sum of remaining number = 16 x 4 = 64

    Excluded number = 90 –  64
    = 26
    Hence, the excluded is 26.

    Anurag Mishra Professor Answered on 2nd August 2015.
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