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Concatenation sum (
Posted on 20190515
)
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
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Submitted by
Danish Ahmed Khan
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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 20220616 02:28:43
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