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4 January, 15:42

A set of 3 consecutive integers has a sum of 30. Which integers are they?

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Answers (2)
  1. 4 January, 15:52
    0
    You can only do it like '7.5 plus 9.5 plus 13
  2. 4 January, 16:03
    0
    Since consecutive means they're one away from each other, the 3 integers can be written like this:

    x

    x + 1

    x + 2

    So, we add all of these together to find x:

    x + x + 1 + x + 2 = 30

    3x + 3 = 30

    3x = 27

    x = 9

    This then means the numbers are 9, 10, and 11
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