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Puzzle of the Day

These puzzles are also printed in Eight days a week, a booklet published by the Association of Teachers of Mathematics.The Association of Teachers of Mathematics

The digits of the year 1999 added up to 28. When is the next time the digits of the year will add up to 28? When else will it happen?

Answer: 2899, 2989, 2998, 3799, etc.

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