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A 3-digit number has, from left to right...

A 3-digit number has, from left to right, the digits, a, b and c with a>c. When the number with the digits reversed is subtracted from the original number, the units digit in the difference is 4. The next two digits, from right to left, are `5a n d9` (b) 9 and 5 5 and 4 (d) 4 and 5

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