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13 November, 08:05

If the average (arithmetic mean) of 2, 7, and x is 12, what is the value of x?

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  1. 13 November, 12:05
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    We must remember that the average or arithmetic mean is simply the sum of the numbers divided by the total amount of number. That is:

    Average = (2 + 7 + x) / 3 = 12

    9 + x = 36

    x = 27
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