These are very simple problems !
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ABOUT MATH THROUGH PRACTICE, OR "LET'S CALCULATE"

The tests was created us for other professional fields

• Economists and managers
• Jurists
• Engineers, the logistic and practical managers
• IT- professionals
• Social public servants
• Economical and manager's psychology and probability
• Economical logistics and statistics in a kitchen
• Club of red-haired market-researchers and one detective problem which Arthur Conan Doyle didn't write

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  From some test towards problems

• The next-deep level , or 'let's create useness of math solutions' (for attention of the financial agents, jurists and prestidigitators) .
• One simple famous Travelling salesman problem and problems of logistics.

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  "To learn and to learn?" - it is possible for any age

• Kinder problems, or the Logics in the Tables
• How paradox-trained groom would have won in horror's lottery of artful King
• Controversies of "simple" sentences (for attention of the philosophers- amateurs): from a jest towards aporia, Zenon, J.Bernal, K. Goedel and foundation of logics).

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  These adaptive and affective tests with a provoking of curiosity, created by Andrey A. Borzykh, was marked the International Community of Development Gateway in 2007 year as higher-level result for Life-Long e-Learning.
  See by English, Francais, by Espanol , by Arabic language , too.