Question

Поезд длинной 1 км входит в тунннель длинной 1км со скоростью 1 км в минуту.Сколько времени поезд проведет в туннеле?

Answer 1

Чтобы  проехать  тунель  поезд  пройдёт  путь,  равный  1  +  1  =  2(км)
Время  равно  путь  разделить  на  скорость.
время  =  2км / (1км/мин)  =  2мин.
Ответ.    2 мин.

Answer 2

Calculation of Time Spent in the Tunnel

To calculate the time the train spends in the tunnel, we need to consider the length of the tunnel and the speed of the train.

Given: - Length of the train = 1 km - Length of the tunnel = 1 km - Speed of the train = 1 km/minute

To find the time spent in the tunnel, we can divide the length of the tunnel by the speed of the train:

Time spent in the tunnel = Length of the tunnel / Speed of the train

Substituting the given values:

Time spent in the tunnel = 1 km / 1 km/minute

Simplifying the expression, we find:

Time spent in the tunnel = 1 minute

Therefore, the train will spend 1 minute in the tunnel.