Question
If we decrease each even digit by '2' and increase each
odd digit by '1' in the number '43576521654' and then arrange all the digits in descending order, then which digit will be 8 th from the right end, after the rearrangement?Solution
4Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â 1Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 4 2Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 8Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 0Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 2 8Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 6 Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â 0
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