Question

От деревни до города 340км/ч, Из деревни в город выехал мотоциклист со скоростью 42км/ч,Спустя 2 ч навстречу ему выехал велосипедист со скоростью 22км/ч,Через сколько часов они всретятся?,Помогите решить задачу

Answer 1

1)42*2=84км-проехал мото за 2 часа.
2)340-84=256км-оставшееся расстояние.
3)42+22=64км\ч-скорость сближения.
4)256:64=через 4ч-они встретятся.

Answer 2

Problem Analysis

To solve this problem, we need to determine the time it takes for the motorcyclist and the cyclist to meet. We are given the distance between the village and the city, as well as the speeds of the motorcyclist and the cyclist. We can use the formula `time = distance / speed` to calculate the time it takes for each of them to travel.

Solution

Let's calculate the time it takes for the motorcyclist to travel from the village to the city: - Distance: 340 km - Speed: 42 km/h - Time = Distance / Speed = 340 km / 42 km/h = 8.1 hours

Now, let's calculate the time it takes for the cyclist to travel from the city to the village: - Distance: 340 km - Speed: 22 km/h - Time = Distance / Speed = 340 km / 22 km/h = 15.45 hours

Since the cyclist starts 2 hours later than the motorcyclist, we need to subtract 2 hours from the time it takes for the cyclist to travel: - Adjusted time for the cyclist = Time for the cyclist - 2 hours = 15.45 hours - 2 hours = 13.45 hours

Now, we can calculate the time it takes for them to meet by adding the time it takes for the motorcyclist and the adjusted time for the cyclist: - Total time = Time for the motorcyclist + Adjusted time for the cyclist = 8.1 hours + 13.45 hours = 21.55 hours

Therefore, the motorcyclist and the cyclist will meet after approximately 21.55 hours.

Conclusion

The motorcyclist and the cyclist will meet after approximately 21.55 hours.