Sum of any three consecutive numbers is always divisible by 3.​

Question

Sum of any three consecutive numbers is always divisible by 3.​

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Bella 2 months 2021-12-03T08:47:17+00:00 2 Answers 0 views 0

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    0
    2021-12-03T08:48:20+00:00

    Answer:

    Yes because it is three consecutive digits

    Ex 1+2+3=6

    5+6+7=18

    900+1000+1100=3000

    0
    2021-12-03T08:48:20+00:00

    Answer:

    True

    Step-by-step explanation:

    let the first number be x.

    Then the three consecutive numbers would be : x, x+1, x+2

    Their sum is

    x + (x + 1) + (x + 2) \\  = 3x + 3 \\  = 3(x + 1)

    So we can see here x+1 is divisible by 3 making their addition divisible by 3. But the numbers must be whole.

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14:4+1-6*5-7*14:3+5 = ? ( )