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If 1 is added to each even digit and 2 is subtracted from each odd digit in the number 456789, what is the new number?
537597
537598
547697
536597
537597
Process each digit sequentially from left to right by checking its parity (even/odd) and applying the specified arithmetic rule instantly.
Process each digit sequentially from left to right by checking its parity (even/odd) and applying the specified arithmetic rule instantly.
Analyze the Given Number and Rules
The given number is 456789. The rules state to add 1 to each even digit and subtract 2 from each odd digit.
Apply Rules Digit by Digit
4 (even) + 1 = 5, 5 (odd) - 2 = 3, 6 (even) + 1 = 7, 7 (odd) - 2 = 5, 8 (even) + 1 = 9, 9 (odd) - 2 = 7.
Form the Final Number
Combining the transformed digits in order gives the new number: 537597.
B: Incorrect because the final digit was incorrectly calculated as 8. C: Incorrect due to wrong arithmetic transformations on the middle digits. D: Incorrect because the third digit is incorrectly shown as 6.
A is correct because applying the respective rules to each digit of 456789 results in 537597.
Always track each digit position carefully from left to right to avoid transposition errors in number-based reasoning problems.
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