Question

Расстояние 240км товарный поезд прошел за 6 ч, а скорый поезд прошел 320 км за 4 ч. Во сколько раз скорость скорого поезда больше скорости товарного поезда?

Answer 1

Скорость товарного поезда:
                         v₁ = S₁/t₁ = 240/6 = 40 (км/ч)
Скорость скорого поезда:
                         v₂ = S₂/t₂ = 320/4 = 80 (км/ч)
Отношение скоростей:
                         v₂/v₁ = 80/40 = 2

Ответ: в 2 раза.

Answer 2

Calculation of Speed

To find the ratio of the speed of the fast train to the speed of the freight train, we need to calculate the speeds of both trains first.

Given information: - Distance traveled by the freight train: 240 km - Time taken by the freight train: 6 hours - Distance traveled by the fast train: 320 km - Time taken by the fast train: 4 hours

To calculate the speed of each train, we can use the formula:

Speed = Distance / Time

For the freight train: - Speed of the freight train = 240 km / 6 hours = 40 km/h

For the fast train: - Speed of the fast train = 320 km / 4 hours = 80 km/h

Ratio of Speeds

Now, we can calculate the ratio of the speed of the fast train to the speed of the freight train:

Ratio = Speed of Fast Train / Speed of Freight Train

Ratio = 80 km/h / 40 km/h = 2

Therefore, the speed of the fast train is 2 times greater than the speed of the freight train.