Among the people working at a company, one person in each group of 10 people who speak English can also speak German. In addition, one person in each group of 25 people who speak German can also speak English. The number of people who know English differs by 60 from the number of people who know German. So, how many people can speak both English and German?
The Prize for This Question: Rubik’s Revolution 3” Cube With LED and Voice/Sound Effects
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This question was prepared by Emrehan Halıcı, president of the Turkey Intelligence Foundation, for Bilkent IEEE.