Предмет: Другие предметы, автор: ladyJenevieve

Решите : собака усмотрела в 150 саженях зайца , который пробегает в 2 минуты по 500 сажен , а собака в 5 минут - 1300 сажен . Спрашивается - в какое время собака догонит зайца ?

Ответы

Автор ответа: prettypushkova
15


1) 500 : 2 = 250 саженей пробегает заяц за 1 минуту

2) 1300 : 5 = 260 саженей пробегает собака за 1 минуту

3) (260 - 250) - 10 саженей в минуту - скорость сближения

4) 150 : 10 = 15 (мин) - через 15 минут собака догонит зайца

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