Question
If 2 is added to each odd digit and 1 is subtracted from
each even digit in the number 34135278, what will be the sum of the digits that are third from the left and third from the right?Solution
3Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 1Â 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 2Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â 8 5Â Â Â Â Â Â Â Â Â 3Â 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 1Â Â Â Â Â Â Â Â Â 9Â Â Â Â Â Â Â Â Â 6 Sum of the digits that are third from the left and third from the right = 3 + 1 = 4.
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