KöMaL 2007 K119
There are two tribes living in Binumeria. The difference between the two tribes is that they write numbers in notations using different bases. A member of each tribe was asked how many members their tribe had. Each of them answered . How many inhabitants are there in Binumeria, given that each tribe consists of more than 100 but less than 1000 members?
Official text KöMaL. Quoted with source.
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