Question

из двух населенных пунктов расстояние между которыми 60 км. одновременно навстречу друг другу вышли два пешехода. скорость первого пешехода 6 км/ч, а скорость второго 2\3 первого. через сколько времени после выхода они встретятся? на каком расстоянии друг от друга будет через два часа после выхода?

Answer 1

тогда скорость второго 6*2/3=4 км/час

 6t+4t=60

 10t=60

t=6  часов они встретяться 

а через 2 часа они будут на расстояний   от друг - друга

 (6+4)*2=20 км 

Answer 2

Problem Setup

Two pedestrians start walking towards each other from two different towns, which are 60 km apart. The first pedestrian walks at a speed of 6 km/h, while the second pedestrian walks at a speed that is 2/3 of the first pedestrian's speed.

Time to Meet

To find out when they will meet, we can use the formula: time = distance / relative speed

The relative speed of the two pedestrians is the sum of their speeds, as they are walking towards each other.

The time it takes for them to meet is: time = 60 km / (6 km/h + 2/3 * 6 km/h)

Calculation

Let's calculate the time it takes for them to meet: time = 60 km / (6 km/h + 4 km/h) = 60 km / 10 km/h = 6 hours

So, they will meet after 6 hours.

Distance Apart After 2 Hours

After 2 hours, the first pedestrian will have covered a distance of 6 km/h * 2 h = 12 km, and the second pedestrian will have covered a distance of (2/3 * 6 km/h) * 2 h = 8 km.

The distance between them after 2 hours will be: 60 km - (12 km + 8 km) = 60 km - 20 km = 40 km

So, after 2 hours, they will be 40 km apart.

Therefore, the pedestrians will meet after 6 hours, and after 2 hours, they will be 40 km apart.