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аноним1. Второй турист прошел на 4 км больше первого, потратив на них 40 минут.
2. Переведем 40 минут в часы.
40 / 60 = 2/3 часа.
2. Узнаем скорость второго туриста.
4 / (2/3) = 4 * 3 / 2 = 6 км/ч.
3. Скорости двух туристов одинаковы и составят 6 км/ч.
4. Время в пути найдем по формуле.
t = s / v.
4. Посчитаем сколько в пути был первый турист.
t1 = 8 / 6 = 4/3 часа или 1 час 20 минут.
5. Посчитаем сколько в пути был второй турист.
t2 = 12 / 6 = 2 часа.
Ответ: первый - 1 час 20 минут , второй - 2 часа.
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