Предмет: Математика, автор: Ксюша8910

поезд был в пути 3ч. и прошёл 230 км. За первый час он прошёл 78км 500м,за второй час на 6 км меньше,чем за первый. какой путь прошел поезд за третий час?

Ответы

Автор ответа: IgorBaev
0
78км 500 м -6 км =72км 500 м прошел за 2 - ой час
78 500+ 72 500= 150 км за 2 часа прошел
230-150= 80 км прошел за третий час
Автор ответа: IgorBaev
0
я чет не понял?? откуда взяли 3800??
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