Question

между городами расстояние 800 км. Из этих населенных пунктах навстречу друг другу выехали легковая машина и грузовик. Через 3 часа расстояние между ними было 350 км. Какое расстояние проехала до встречи легковая машина,если скорость грузовика 70 км/час. Решить с вопросами.

Answer 1

70*3=210 км проехал грузовик

350+210=560 км расстояние до легковой машины

800-560=240 км  проехала легковая машина

 

 

 

 

Answer 2

Problem Analysis

We are given that the distance between two cities is 800 km. A car and a truck start from these cities towards each other and after 3 hours, the distance between them is 350 km. We need to find the distance traveled by the car.

Solution

Let's assume that the car traveled x km in 3 hours. Since the truck's speed is given as 70 km/h, the truck would have traveled 70 * 3 = 210 km in 3 hours.

The total distance traveled by both the car and the truck in 3 hours is x + 210 km. We know that the total distance between the two cities is 800 km, so the remaining distance between them after 3 hours is 800 - (x + 210) = 590 - x km.

According to the problem, the remaining distance between the car and the truck after 3 hours is 350 km. Therefore, we can set up the following equation:

590 - x = 350

Simplifying the equation, we get:

x = 590 - 350 = 240 km

Therefore, the car traveled 240 km in 3 hours.

Answer

The car traveled 240 km before meeting the truck.

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