English Riddles
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Interpreting - Translation




Riddles

I say, I say, I say... And how many riddles can you solve?... No cheating, mind! It's much more fun if you really try.

There is a town where a quarter of all the people living have unlisted phone numbers. If you select 100 names at random from the town's phone book, on average how many of these people would have unlisted phone numbers?

 





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