Question
All the digits at the odd numbered position of the
number '51256239' are increased by 3, starting from the left end and all the digits of the number are thus arranged in increasing order from left to right. What is the sum of the last four digits, from the left end of the number thus obtained?Solution
5Â Â Â Â Â Â Â Â Â 1Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â 9 8Â Â Â Â Â Â Â Â Â 1Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 9Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 9 1Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 5Â 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 9Â Â Â Â Â Â Â Â Â 9 The last four digits, from the left end of the number are '6', '8', '9', and '9' respectively. Sum = 6 + 8 + 9 + 9 = 32.
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