Five number have amean of 12,when one number is removed, the mean becomes 11,what is the removed number

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Five number have amean of 12,when one number is removed, the mean becomes 11,what is the removed number

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Farah 3 months 2021-07-31T16:56:20+00:00 1 Answers 3 views 0

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    2021-07-31T16:57:26+00:00

    Answer:

    The removed number is 16

    Step-by-step explanation:

    Five numbers have a mean of 12.

    Now;

    Mean = Σx/x

    Thus; Σx = 12 × 5 = 60

    Now,we are told that if one number is removed, the mean is 11.

    Thus;

    (60 – x)/4 = 11

    60 – x = (11 × 4)

    60 – x = 44

    x = 60 – 44

    x = 16

    Thus,the removed number is 16

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