{"answer":"Алгебраическая загадка (задача)","author":"Римма Ионтель","batch_info":{"date":"00-000-2002","description":"Четвертый IRC чемпионат Интернет-клуба","filename":"irc2002.json"},"comment":"In the twilight of the Greek era, a singular man appeared - Diophantus,\nwho has been called the \"Father of Algebra\". Of his dates, we know only\nthat they fell sometime between 100 and 400 AD. However, we do know\nprecisely how long he lived - 84 years. We have this information because\none of his admirers described his life in terms of an algebraic riddle.\nThe riddle begins: \"Diophantus' youth lasted 1/6 of his life. He grew a\nbeard after 1/12 more. After 1/7 more of his life, Diophantus married; 5\nyears later he had a son. The son lived exactly 1/2 as long as his\nfather, and Diophantus died just four years after his son. All of this\nadds up to the years Diophantus lived.\"","date":"22-Mar-2003","description":"Биографических данных о древнегреческих ученых очень мало, мы редко\nзнаем даже даты их рождения и смерти. Мы вряд ли узнали бы о событиях,\nпроисшедших в жизни одного из них в 21 год, в 38 лет, в 43 и в 84 года,\nесли бы не произведение, созданное его поклонником и последователем.\nНазовите жанр этого произведения.","id":"Вопрос 7","next":172417,"num":96226,"source":"http://www.firstscience.com/SITE/factfile/factfile1481_1500.asp (#1487)","tour":"7 тур, \"Суббота, 13\""}