1997 PMWC Problems/Problem T9

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Problem

Find the two 10-digit numbers which become nine times as large if the order of the digits is reversed.

Solution

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1. $1000000000\le x\le1111111111$

See Also

1997 PMWC (Problems)
Preceded by
Problem T8
Followed by
Problem T10
I: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
T: 1 2 3 4 5 6 7 8 9 10