2 часа=120 минут
1) 120:3=40
2)120-40=80
ответ:80 минут
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Пошаговое объяснение:
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1 час 20 мин
Пошаговое объяснение:
2 часа = 120 мин
2/3 × 120= 80 мин
80 мин = 1 час 20 мин