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3 votes
Find all multiples of 9 less than 10000 whose only digits are 1 and/or 8?

1 Answer

3 votes

Answer:

18, 81, 1188, 1818, 1881, 8118, 8181, 8811

Explanation:

Please see the attached file for explanation

Find all multiples of 9 less than 10000 whose only digits are 1 and/or 8?-example-1
Find all multiples of 9 less than 10000 whose only digits are 1 and/or 8?-example-2

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