Предмет: Математика, автор: Аноним

Два поезда идут навстречу друг другу. Один прошёл две пятых всего пути , а другой - половину. Сколько километров осталось им идти до встречи , если между ними было 200 километров?

Ответы

Автор ответа: Sveta01042004

200:2=100 (км)-прошёл 2 поезд
200:5= 40 (км)-1 пятая всего пути
40*2=80 (км)-прошёл первый поез
200-(100+80)=200-180=20 (км)
Ответ. 20 км осталось до свтречи поездов

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