Thread: Math Puzzle???
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Old 11-01-2007, 06:46 AM   #7 (permalink)
dss90c
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Re: Math Puzzle???

Quote:
Originally Posted by SJYokel
But that wasn't the original puzzle...it was:
1 2 3 4
5 7 8 9

I see two answers:
1) It can't be done if you allocate each number to only one group. There are 5 odd numbers, so one of the groups will always be odd and the other will have to be even (the groups could have 1-4, 2-3, 3-2, or 4-1 odd numbers in them).

2) It doesn't say you have to use all of the numbers or use each number only once, so my solution would be:

2 3 5 9 = 19
1 3 7 8 = 19
No wonder why I thought it was easy! Good catch.
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