Вопрос школьника по предмету Математика
До обеда лыжники пробежали 48 км, а после обеда — 36 км. Всего они бежали 7 ч. Сколько часов лыжники бежали до и после обеда, если они двигались с одинаковой скоростью?
Ответ учителя по предмету Математика
1)48+36=84
2)84:7=12(км/ч)
3)48:12=4(час)-до обеда
4)36:12=3(часа)-после обеда
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