Question

Грузовая и легковая машины выехали одновременно нонавстречу друг другу из двух городов А и В. И встретились через 3 часа после начала движения причём грузовая машина после встречи прибыла в город В через 4 часа. Через сколько времени после встречи легковая машина прибудет в город А?

Answer 1

вот фото ответ   спасибо не надо 

Answer 2

Problem Analysis

We have two vehicles, a truck and a car, traveling towards each other from two cities, A and B. They meet after 3 hours of travel, and after the meeting, the truck arrives in city B after 4 more hours. We need to determine how long it will take for the car to arrive in city A after the meeting.

Solution

Let's assume the speed of the truck is T and the speed of the car is C. We can use the formula distance = speed * time to solve this problem.

1. The truck and the car meet after 3 hours of travel. Therefore, the distance traveled by the truck and the car combined is 3 * (T + C).

2. After the meeting, the truck continues to travel for 4 more hours and arrives in city B. Therefore, the distance traveled by the truck is 4 * T.

3. To find the distance traveled by the car after the meeting, we subtract the distance traveled by the truck from the total distance traveled by both vehicles: 3 * (T + C) - 4 * T.

4. Since the distance traveled by the car is the same as the distance between the two cities, we can set up the equation: 3 * (T + C) - 4 * T = D, where D is the distance between the two cities.

5. Now we can solve the equation for C, the speed of the car.

Let's calculate the time it will take for the car to arrive in city A after the meeting.

Calculation

To calculate the time it will take for the car to arrive in city A after the meeting, we need to find the value of C.

Using the equation 3 * (T + C) - 4 * T = D, where D is the distance between the two cities, we can substitute the given values:

3 * (T + C) - 4 * T = D

We don't have the specific values for the speeds of the truck and the car or the distance between the two cities, so we cannot calculate the exact time it will take for the car to arrive in city A after the meeting.

Please provide the specific values for the speeds of the truck and the car, as well as the distance between the two cities, so we can calculate the answer for you.