Question

Из двух военных лагерей вышли одновременно навстречу друг другу две роты солдат.Одна рота идёт со скоростью 5 км\ ч ,а другая - со скоростью 6 км\ч. Какое расстояние будет между ними через 3 часа.если лагеря находятся на расстоянии 38 км друг от друга?

Answer 1

Скорость сближения (общая скорость) = 5+6 = 11 км/ч.
За 3 часа: 11*3 = 33 км
Между ними останется 38 - 33 = 5 км

Answer 2

Problem Analysis

We have two military camps located 38 km apart. Two platoons of soldiers start walking towards each other simultaneously. One platoon walks at a speed of 5 km/h, and the other platoon walks at a speed of 6 km/h. We need to find the distance between them after 3 hours.

Solution

To find the distance between the two platoons after 3 hours, we need to calculate the total distance covered by both platoons and then subtract it from the initial distance of 38 km.

Let's calculate the distance covered by each platoon in 3 hours:

- The first platoon walks at a speed of 5 km/h. So, in 3 hours, they will cover a distance of 5 km/h * 3 h = 15 km. - The second platoon walks at a speed of 6 km/h. So, in 3 hours, they will cover a distance of 6 km/h * 3 h = 18 km.

Now, let's calculate the total distance covered by both platoons:

- The first platoon covers 15 km. - The second platoon covers 18 km.

The total distance covered by both platoons is 15 km + 18 km = 33 km.

Finally, let's calculate the distance between the two platoons after 3 hours:

- The initial distance between the two platoons is 38 km. - The total distance covered by both platoons is 33 km.

To find the distance between them after 3 hours, we subtract the total distance covered by both platoons from the initial distance:

38 km - 33 km = 5 km.

Therefore, the distance between the two platoons after 3 hours will be 5 km.

Conclusion

After 3 hours, the two platoons will be 5 km apart.