Question

С двух туристических баз, расстояние между которыми 34 км , одновременно навстречу друг другу ввшли пешеход и лыжник. Пешеход шел со скоростью 5км/час,а лыжник 12 км/час.Через сколько часов они встретятся???

Answer 1

34:(12+5)=2(ч)
Ответ:через 2 часа они встретятся

Answer 2

1) 5+12=17 км /ч - скорость сближения
2) 34:17=2 часа - через столько встретятся.

Answer 3

Problem Analysis

We are given two tourist bases that are 34 km apart. A pedestrian and a skier start walking towards each other simultaneously. The pedestrian walks at a speed of 5 km/h, while the skier travels at a speed of 12 km/h. We need to determine how many hours it will take for them to meet.

Solution

To find the time it takes for the pedestrian and the skier to meet, we can use the formula:

Time = Distance / Speed

Let's calculate the time it takes for each of them to reach the meeting point.

The pedestrian's speed is 5 km/h, and the distance to the meeting point is 34 km. Therefore, the time it takes for the pedestrian to reach the meeting point is:

Time for pedestrian = Distance / Speed = 34 km / 5 km/h

The skier's speed is 12 km/h, and the distance to the meeting point is also 34 km. Therefore, the time it takes for the skier to reach the meeting point is:

Time for skier = Distance / Speed = 34 km / 12 km/h

Now, we can calculate the time it takes for them to meet by taking the average of the two times:

Time to meet = (Time for pedestrian + Time for skier) / 2

Let's calculate the values:

Time for pedestrian = 34 km / 5 km/h = 6.8 hours

Time for skier = 34 km / 12 km/h = 2.83 hours

Time to meet = (6.8 hours + 2.83 hours) / 2 = 4.82 hours

Therefore, it will take approximately 4.82 hours for the pedestrian and the skier to meet.

Answer

It will take approximately 4.82 hours for the pedestrian and the skier to meet.