Question
If in the number '54693842', '1' is added to all the
even digits, then, which of the following digit is not repeated in the new number?Solution
5Â 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 9Â Â Â Â Â Â Â Â Â 3Â 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 2 5Â 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 9Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â 9Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 3 So, only '7' is not repeated in the new number. Hence, option d.
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