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24 September, 03:59

three different members of the set {4, 5, 6, 7, 8, 9} are chosen at random and added. how many different sums are possible?

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  1. 24 September, 04:20
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    Answer: 20

    Step-by-step explanation:

    4+4 5+5 6+6 7+7 8+8

    4+5 5+6 6+7 7+8 8+9

    4+6 5+7 6+8 7+9

    4+7 5+8 6+9

    4+8 5+9

    4+9
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