Question

Путешественик 3 часа ехал на автобусе и 3 часа на поезде,преодолев за это время путь в 390 километров.Найдите скорость автобуса,если она в 3 е меньше скорости поезда.

Answer 1

Пусть х-скорость автобуса, тогда 3х-скорость поезда.Составляем уравнение:3х+3*3х=3903х+9х=39012х=390х=390/12х= 32,5(км/ч)-скорость автобусаОтвет: 32.5 км/ч.

Answer 2

Calculation of the Bus and Train Speeds

To find the speed of the bus, we need to determine the speed of the train first. Let's assume the speed of the train is x km/h. According to the given information, the traveler spent 3 hours on the bus and 3 hours on the train, covering a total distance of 390 kilometers.

We can calculate the speed of the train using the formula: speed = distance / time.

For the train: - Distance = 390 kilometers - Time = 3 hours

Using the formula, we can calculate the speed of the train: x = 390 / 3.

Now, we know that the speed of the bus is 3 times less than the speed of the train. Therefore, the speed of the bus is x / 3.

Let's calculate the speed of the bus using the calculated speed of the train:

Speed of the train (x) = 390 / 3 = 130 km/h

Speed of the bus = x / 3 = 130 / 3 ≈ 43.33 km/h.

Therefore, the speed of the bus is approximately 43.33 km/h.