Предмет: Математика, автор: jessilaits

два поезда выехали одновременно в одном направлении из двух городов, расстояние между которыми 180 км. скорость первого поезда 80 км/ч, а скорость второго - 65 км/ч. через сколько часов первый поезд догонит второй?

Ответы

Автор ответа: Annetta804

80-65=15

180:15=12ч

Ответ: через 12 часов

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