Mean of 12 numbers is 20. If each number is multiplied by 6, then the new mean is ………​

Question

Mean of 12 numbers is 20. If each number is multiplied by 6, then the new mean is ………​

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Hadley 2 months 2021-10-10T12:30:23+00:00 1 Answer 0 views 0

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    2021-10-10T12:31:41+00:00

    Answer:

    mean of 12 numbers is 20

    ie, mean=sum of observation by number of observation

    let the sum of observations be x

    so, 20= x by 12

    so 20×12 =x

    x=240

    new mean will be 240 x 6,

    1440 by 12

    so new mean 120

    i think so not sure..

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