Предмет: Математика, автор: BmW32

Розв'яжи задачу. Два кроти вирушили назустріч один одному. Відстань між ними 1800 м. Через який час вони зустрінуться, якщо один кріт рухається зі швидкістю 20 м/хв, а інший - зі швидкістю удвічі меншою?

Ответы

Автор ответа: iramazurk

Ответ:

Через 60 минут

Пошаговое объяснение:

1) 20 : 2 = 10 (м/мин) - скорость второго крота

2) 20 + 10 = 30 (м/мин) - скорость сближения двух кротов

3) 1800 : 30 = 60 (минут) - время через которое кроты встретятся

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