Question

3. Расстояние между городами 110 км. Скорость одного велосипедиста 13 км/ч, а второго – 17 км/ч. Найдите, какое расстояние будет между велосипедистами через шесть часов, если они выехали из разных городов одновременно навстречу друг другу.

Answer 1

13*6=78км проедит первый 17*6=102км проедит второй (78+102)-110=70км они встретятся

Answer 2

Problem Analysis

We are given that the distance between two cities is 110 km. One cyclist is traveling at a speed of 13 km/h, while the other is traveling at a speed of 17 km/h. We need to find the distance between the two cyclists after six hours if they started from different cities simultaneously and are moving towards each other.

Solution

To find the distance between the two cyclists after six hours, we need to calculate the total distance covered by both cyclists and then subtract the initial distance between them.

Let's calculate the distance covered by each cyclist in six hours:

- The first cyclist is traveling at a speed of 13 km/h. In six hours, the first cyclist will cover a distance of 13 km/h * 6 h = 78 km. - The second cyclist is traveling at a speed of 17 km/h. In six hours, the second cyclist will cover a distance of 17 km/h * 6 h = 102 km.

Now, let's calculate the distance between the two cyclists after six hours:

- The initial distance between the two cyclists is 110 km. - The first cyclist has covered a distance of 78 km. - The second cyclist has covered a distance of 102 km.

To find the distance between the two cyclists after six hours, we subtract the sum of the distances covered by both cyclists from the initial distance between them:

Distance between the two cyclists after six hours = Initial distance - (Distance covered by the first cyclist + Distance covered by the second cyclist)

Distance between the two cyclists after six hours = 110 km - (78 km + 102 km)

Distance between the two cyclists after six hours = -70 km

Answer

The distance between the two cyclists after six hours, if they started from different cities simultaneously and are moving towards each other, is -70 km.