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anonymous

  • one year ago

which of the following CANNOT be exprssed as the sum of three consecutive integers? a)18 b)24 c)33 d)36

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  1. Vocaloid
    • one year ago
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    hm... we can write the sum of three consecutive integers as n + (n + 1) + (n+2) = 3n + 3 = (the sum) we know that n must be an integer, so 3n + 3 must be divisible by 3

  2. anonymous
    • one year ago
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    oh

  3. anonymous
    • one year ago
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    n-1,n,n+1 n-1+n+n+1=3n each term is divisible by 3

  4. anonymous
    • one year ago
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    correction middle term is ,divide by 3

  5. anonymous
    • one year ago
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    s the answer 18?

  6. anonymous
    • one year ago
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    e.g.,24/3=8 middle term is 8 8-1,8,8+1or 7,8,9 are the required terms

  7. anonymous
    • one year ago
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    sum is divisible by 3 for 18 18/3=6 6-1,6,6+1 or 5,6,7

  8. anonymous
    • one year ago
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    each term means all your choices are divisible by 3

  9. anonymous
    • one year ago
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    answer is 18?

  10. anonymous
    • one year ago
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    5+6+7=18 there is no term .

  11. Loser66
    • one year ago
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    To me all of them can be expressed as sum of 3 consecutive numbers.

  12. anonymous
    • one year ago
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    you are absolutely correct.

  13. Loser66
    • one year ago
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    3| 18 =6, hence middle one is 6, so the numbers is 5 , 6 ,7 3|24 = 8, hence middle one is 8 , the numbers is 7,8,9 same as others

  14. anonymous
    • one year ago
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    i did all but there is no answer

  15. zepdrix
    • one year ago
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    Hmm, there is no correct answer D: that's so weird

  16. anonymous
    • one year ago
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    serious?

  17. zepdrix
    • one year ago
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    18 = 5 + 6 + 7 24 = 7 + 8 + 9 33 = 10 + 11 + 12 36 = 11 + 12 + 13 Are you sure you posted the `options` correctly? :o

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