Question

Решите задачу. Запишите решения и ответ. Два поезда вышли одновременно навстречу друг другу из двух городов ,расстояние между которыми 6 5 0 километров,и встретились через 5 часов .Чему равна скорость второго поезда , если скорость первого равна 6 2 км /ч ?

Answer 1

1) 5×62=310(км) - прошел первый поезд;
2) 650-310=340(км) - прошел второй поезд;
3)340÷5=68(км/ч)
Ответ: скорость второго поезда - 68 км/ч

Answer 2

Problem Analysis

We are given that two trains start simultaneously from two cities and meet each other after 5 hours. The distance between the two cities is 650 kilometers. The speed of the first train is 62 km/h. We need to find the speed of the second train.

Solution

Let's assume the speed of the second train is x km/h.

We know that the distance covered by the first train in 5 hours is equal to the distance covered by the second train in 5 hours. Therefore, we can set up the following equation:

Distance covered by the first train = Distance covered by the second train

Speed of the first train * Time taken = Speed of the second train * Time taken

62 km/h * 5 hours = x km/h * 5 hours

Now we can solve this equation to find the value of x.

Calculation

62 km/h * 5 hours = x km/h * 5 hours

310 km = 5x

Dividing both sides by 5:

62 km = x

Answer

The speed of the second train is 62 km/h.

Note: The answer is based on the given information and the assumption that the trains are traveling at a constant speed throughout the journey.