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Mathematics, 22.10.2020 20:01 gabbym39077

There are 4 different digits 1, 2, x, y. know that from those 4 digits you can make 18 natural numbers with 3 different digits and the sum of those 18 numbers is 4508. calculate x + y

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There are 4 different digits 1, 2, x, y. know that from those 4 digits you can make 18 natural numbe...
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