Mehr822 Mehr822

11-07-2014
Mathematics

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Using numbers 1 3 5 7 9 11 13 17 19 in 5 steps sum should be 30.We can repeat numbers.

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konrad509 konrad509

11-07-2014

All given numbers are odd. The sum of odd number (in this case 5) of such numbers is odd too. 30 is an even number, so it's impossible to get 30 in total by adding up any of these numbers.

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