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13 August, 00:16

If the average of 7 is consecutive odd numbers is 23 whatis the value of the greatest integer in this seriers

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  1. 13 August, 01:08
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    Consecutive odd integers are 2 apart

    they are

    x, x+2, x+4, x+6, x+8, x+10, x+12

    mean is 23

    (x+x+2+x+4+x+6+x+8+x+10+x+12) / 7=23

    (7x+42) / 7=23

    times 7 both sides

    7x+42=161

    minus 42 both sides

    7x=119

    divide both sides by 7

    x=17

    largest is x+12

    17+12=29

    largest is 29
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