Question

Расстояние по реке между двумя городами 275км.из этих городов одновременно навстречу друг другу вышли пароход и баржа. Пароход шел со скоростью 28км/ч, а другой 52км/ч. Через 6 часов поезда встретились. Найдите расстояние между городами.

Answer 1

1.28+52=80(км/ч)-скорость сближения.
2.80х6=480(км)-расстояние между городами.

Ответ:480 км.

Answer 2

Problem Analysis

We are given that the distance between two cities along a river is 275 km. A steamboat and a barge set off simultaneously from these cities towards each other. The steamboat travels at a speed of 28 km/h, while the barge travels at a speed of 52 km/h. After 6 hours, the two vehicles meet. We need to find the distance between the cities.

Solution

Let's denote the distance traveled by the steamboat as x km and the distance traveled by the barge as y km. Since they are traveling towards each other, the sum of their distances traveled will be equal to the total distance between the cities.

According to the given information, the steamboat travels at a speed of 28 km/h for 6 hours, so the distance traveled by the steamboat is 28 * 6 = 168 km. Similarly, the barge travels at a speed of 52 km/h for 6 hours, so the distance traveled by the barge is 52 * 6 = 312 km.

Let's set up an equation to represent the sum of the distances traveled by the steamboat and the barge:

x + y = 275 (since the total distance between the cities is 275 km)

We also know that the distance traveled by the steamboat is 168 km and the distance traveled by the barge is 312 km:

x = 168 and y = 312

Substituting these values into the equation, we get:

168 + 312 = 275

Simplifying the equation, we find:

480 = 275

This is not a valid equation, which means there is an error in the given information or the problem statement. Please double-check the values provided.

If you have any further questions, please let me know.