Mathematics, 14.08.2020 15:01 ceceshelby51631

When positive integer A, which has n digits, is multiplied by (n+2) , the product is a number with (n+1) digits, all of whose digits are (n+1) . How many instances of A exist?

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When positive integer A, which has n digits, is multiplied by (n+2) , the product is a number with (...

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