Question
In the number '4765434632', 2 is added to all the even
digits and 1 is subtracted from all the odd digits. The digits are then arranged in decreasing order from the left to right, then which digit is seventh digit from left end?Solution
4 7 6 5 4 3 4 6 3 2
6 6 8 4 6 2 6 8 2 4
8 8 8 6 6 6 4 4 2 2
Therefore, '4' is the seventh digit from the left end.
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