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18 June, 23:34

Mr. And Ms. Wakani have a number of children. If 0.625 of the family are female, find the smallest number of children that could be in the Wakani family.

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  1. 18 June, 23:49
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    The smallest number of children that could be in the Wakani family is 5.

    Step-by-step explanation:

    The number of children (both male and female) is a discrete number. That is, it is a countable number, 1,2,3, ...

    We solve this by trial an error.

    1 children:

    0.625*1 = 0.625 female. Not possible.

    2 children:

    0.625*2 = 1.25 female. Not possible

    3 children:

    0.625*3 = 1.875 female. Not possible

    4 children:

    0.625*4 = 2.5 female. Not possible

    5 children:

    0.625*5 = 3.125 female. Not possible.

    6 children:

    0.625*6 = 3.75 female. Not possible

    7 children:

    0.625*7 = 4.375 female. Not possible

    8 children:

    0.625*8 = 5 female. Possible

    The smallest number of children that could be in the Wakani family is 5.
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