Question

два автобуса одновременно выехали из двух городов навстречу друг другу со скоростями 65км/ч и 75 км/ч. Через какое время они встретятся, если расстояние между городами равно 280 км?

Answer 1

Problem Analysis

We are given that two buses are traveling towards each other from two different cities. The first bus has a speed of 65 km/h, while the second bus has a speed of 75 km/h. The distance between the cities is 280 km. We need to determine how long it will take for the buses to meet.

Solution

To find the time it takes for the buses to meet, we can use the formula:

Time = Distance / Relative Speed

The relative speed is the sum of the speeds of the two buses. Let's calculate the time it takes for the buses to meet.

Calculation

The relative speed of the two buses is 65 km/h + 75 km/h = 140 km/h.

Using the formula, we can calculate the time it takes for the buses to meet:

Time = 280 km / 140 km/h = 2 hours

Therefore, the two buses will meet after 2 hours.

Answer

The two buses will meet after 2 hours.

[SOURCE 1]