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За первый день Вася прочитал 3/5 книги, во второй 1/6 книги, а в третий оставшиеся 14 страниц. Сколько страниц прочитал Вася за первый день?
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Предмет:
Математика -
Автор:
waldoxd6b - 5 лет назад
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Ответы 1
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Дано:
Первый день: 3/5 книги
Второй день: 1/6 книги
Третий день: 14 страниц
Найти: сколько страниц прочитал Вася за 1 день
Решение:
1) 3/5 + 1/6 = 23/30 - сколько страниц прочитал за 2 дня
2) 1 - 23/30 = 7/30 - прочитал за 3 день
3) 14 * 30/7 = 60 - сколько всего страниц в книге
4) 60 * 3/5 = 36 - страниц прочитал Вася за 1 день
Ответ: 36 страниц
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Автор:
yolanda - 5 лет назад
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