Question

Из Новосибирска и Саратова вышли одновременно навстречу друг другу два поезда. Один из них идёт со скоростью 62 км/ч, а другой 74 км/ч. На каком расстоянии друг то друга они будут через 5 ч после выхода, если от Новосибирска до Саратова 892 км?

Answer 1

62*5=310(км проедет первый поезд за 5 часов).
74*5=370(км проедет второй поезд за 5 часов).
892-370+310=212.
Ответ:Оба будут друг от друга на расстоянии 212 км.

Answer 2

Problem Analysis

We have two trains, one traveling from Novosibirsk to Saratov and the other traveling from Saratov to Novosibirsk. The first train is traveling at a speed of 62 km/h, and the second train is traveling at a speed of 74 km/h. We need to determine the distance between the two trains after 5 hours.

Solution

To find the distance between the two trains after 5 hours, we need to calculate the distance each train has traveled in that time.

Let's start by calculating the distance traveled by the first train. The formula to calculate distance is:

Distance = Speed × Time

For the first train: - Speed = 62 km/h - Time = 5 hours

Using the formula, we can calculate the distance traveled by the first train:

Distance of the first train = 62 km/h × 5 hours

Next, let's calculate the distance traveled by the second train. Using the same formula:

Distance of the second train = 74 km/h × 5 hours

Finally, to find the distance between the two trains, we subtract the distance traveled by the second train from the distance traveled by the first train:

Distance between the two trains = Distance of the first train - Distance of the second train

Let's calculate the distances:

Distance of the first train = 62 km/h × 5 hours = 310 km

Distance of the second train = 74 km/h × 5 hours = 370 km

Distance between the two trains = 310 km - 370 km = -60 km

The negative distance indicates that the two trains have not yet met. They are still 60 km apart.

Therefore, after 5 hours, the two trains will be 60 km apart.

Answer

After 5 hours, the two trains will be 60 km apart.