Question

Помогите, пожалуйста! Два автомобиля одновременно выехали навстречу друг другу из пунктов А и Б. Автомобили встретились в 12 часов и продолжили своё движение. Первый автомобиль прибыл в пункт Б в 13 часов, второй автомобиль прибыл в пункт А в 16 часов. Определите (в часах), в котором часу выехали автомобили. Движение автомобилей считайте прямолинейным равномерным.

Answer 1

Problem Analysis

We have two cars that start from points A and B simultaneously and meet each other at 12 o'clock. The first car arrives at point B at 1 o'clock, and the second car arrives at point A at 4 o'clock. We need to determine the time at which the cars started their journey.

Solution

Let's assume that the first car started its journey at time x and the second car started its journey at time y. Since the cars meet each other at 12 o'clock, we can calculate the time it took for each car to reach the meeting point.

The first car took 1 hour to reach point B, so the time it took to travel from point A to the meeting point is 12 - x - 1 = 11 - x hours.

The second car took 4 hours to reach point A, so the time it took to travel from point B to the meeting point is 12 - y - 4 = 8 - y hours.

Since the distance traveled by both cars is the same, we can set up the following equation:

11 - x = 8 - y

Simplifying the equation, we get:

y - x = 3

Therefore, the time at which the cars started their journey is when the difference between their departure times is 3 hours.

Calculation

To find the exact time at which the cars started their journey, we need more information. The given problem does not provide any additional details. Therefore, it is not possible to determine the exact time at which the cars started their journey based on the given information.

If you have any additional information or if there is anything else I can assist you with, please let me know.