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Автор - megavarfeyser

товарный поезд за первый час движения прошел 45 км за второй 40 км а за третий 47 км. Вичислить среднию скорость товарного поезда

Ответ

Автор - катя34а
(45+40+47):3=44(км) средняя скорость товарного поезда

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