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Concatenation sum (Posted on 2019-05-15)

The number 123456789 is concatenated 1729 times to form a number A

Similarly, the number 987654321 is concatenated 1729 times to form another number B

If A+B=C, find the sum of digits of C

No Solution Yet Submitted by Danish Ahmed Khan

Rating: 2.0000 (1 votes)

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Puzzle Answer

| Comment 3 of 4 |

The required sum of the digits is 15, 561

Posted by K Sengupta on 2022-06-16 02:28:43

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