Question

велосипедист и мотоциклист выехали одновременно из двух посёлков навстречу друг другу. Велосипедист ехал со скоростью 15км/ч, а мотоциклист-со скоростью 57 км/ч. Через сколько часов они встретятся, если расстояние между посёлками 288 км?

Answer 1

1)15+57=72 км\ч -скорость сближения
2)288:72=4 ч
Ответ через 4 часа они встретятся

Answer 2

Problem Analysis

We are given that a cyclist and a motorcyclist start simultaneously from two different villages and are heading towards each other. The cyclist is traveling at a speed of 15 km/h, while the motorcyclist is traveling at a speed of 57 km/h. We need to determine how many hours it will take for them to meet, given that the distance between the villages is 288 km.

Solution

To solve this problem, we can use the formula: time = distance / speed. We can calculate the time it takes for both the cyclist and the motorcyclist to cover the distance between the villages, and the sum of their times will give us the total time it takes for them to meet.

Let's calculate the time it takes for the cyclist and the motorcyclist to cover the distance between the villages.

1. Time taken by the cyclist: - Distance: 288 km - Speed: 15 km/h - Time = Distance / Speed = 288 km / 15 km/h = 19.2 hours

2. Time taken by the motorcyclist: - Distance: 288 km - Speed: 57 km/h - Time = Distance / Speed = 288 km / 57 km/h = 5.05 hours

Now, let's calculate the total time it takes for them to meet by adding their individual times:

Total time = Time taken by the cyclist + Time taken by the motorcyclist = 19.2 hours + 5.05 hours = 24.25 hours

Therefore, it will take approximately 24.25 hours for the cyclist and the motorcyclist to meet.