Question

расстояние от Атырау до Актобе по железной дороге 600 км .Из этих городов оновременно навстречу друг другу вышли два поезда.Скорость поезда,вышедшего из Атырау,80км/ч.Скорость поезда,вышедшего из Актобе,на 10 км/ч меньше.Каким будет расстояние между поездами через 3ч?Какую часть всего расстояния составляет этот промежуток пути?

Answer 1

80+(80-10)=150км /час скорость сближения

 150*3=450км пройдут поезда за 3 часа 

600-450=150 км будет растояние между ними

150:600=1/4 часть этого расстояния

Answer 2

Calculation of the Distance between the Trains

To calculate the distance between the trains after 3 hours, we need to consider the speeds of the trains and the time they have been traveling.

Given: - Distance from Atyrau to Aktobe: 600 km - Speed of the train from Atyrau: 80 km/h - Speed of the train from Aktobe: 80 km/h - 10 km/h = 70 km/h (10 km/h less than the train from Atyrau)

To find the distance between the trains after 3 hours, we can use the formula:

Distance = Speed x Time

For the train from Atyrau: Distance = 80 km/h x 3 h = 240 km

For the train from Aktobe: Distance = 70 km/h x 3 h = 210 km

Therefore, the distance between the trains after 3 hours will be the difference between the distances traveled by each train:

Distance between the trains = Distance from Atyrau to Aktobe - Distance traveled by the train from Atyrau - Distance traveled by the train from Aktobe

Distance between the trains = 600 km - 240 km - 210 km = 150 km

So, the distance between the trains after 3 hours will be 150 km.

Calculation of the Proportion of the Total Distance

To calculate the proportion of the total distance that this interval covers, we need to compare the distance between the trains after 3 hours with the total distance between Atyrau and Aktobe.

Given: - Distance from Atyrau to Aktobe: 600 km - Distance between the trains after 3 hours: 150 km

To find the proportion of the total distance covered by this interval, we can use the formula:

Proportion = (Distance between the trains / Total distance) x 100

Proportion = (150 km / 600 km) x 100 = 25%

Therefore, this interval between the trains after 3 hours covers 25% of the total distance between Atyrau and Aktobe.

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