Question

Два туриста одновременно выехали из пунктов а и в навстречу друг другу через 3 часа через сколько часов после отъезда первого они встретятся если первый проежал 10 км\час а второй 10 км\час и если растояние между ними 140 км

Answer 1

Если ори выехали одновременно и скорость у них одинаковая то они проведут по 70 км значит 140/2=70 а так как их скорость по 10 км в час то 70/10=7 и они встретятся через 7 часов

Answer 2

Problem Analysis

Two tourists are traveling towards each other from points A and B. The first tourist travels at a speed of 10 km/h, and the second tourist also travels at a speed of 10 km/h. The distance between them is 140 km. We need to determine how many hours after the departure of the first tourist they will meet.

Solution

To solve this problem, we can use the formula: time = distance / speed.

Let's calculate the time it takes for the first tourist to reach the meeting point: - Distance traveled by the first tourist = speed * time = 10 km/h * 3 hours = 30 km.

Now, let's calculate the remaining distance between the two tourists: - Remaining distance = total distance - distance traveled by the first tourist = 140 km - 30 km = 110 km.

Since both tourists are traveling towards each other at the same speed, the remaining distance will be covered in the same amount of time. Therefore, the time it takes for the second tourist to reach the meeting point is: - Time = remaining distance / speed = 110 km / 10 km/h = 11 hours.

Adding the time it took for the first tourist to reach the meeting point (3 hours) to the time it takes for the second tourist to reach the meeting point (11 hours), we get the total time it takes for them to meet: - Total time = 3 hours + 11 hours = 14 hours.

Therefore, the two tourists will meet 14 hours after the departure of the first tourist.

Answer

The two tourists will meet 14 hours after the departure of the first tourist if the first tourist traveled at a speed of 10 km/h, the second tourist also traveled at a speed of 10 km/h, and the distance between them was 140 km.