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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

1234 divided by 11 is not a whole number but if you rearrange the digits it is possible to find a number that divides by 11 to give a whole number. How many different ways can you find to do this?

Answer: 1243, 1342, 2134, 2431, 3124, 3421, 4213, 4312

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