Question

Поезд проехал 432 км за 9ч. На сколько ему нужно увеличить скорость, чтобы проехать то же расстояние за 6ч?

Answer 1

432:6=72(ч) нужно увиличить скорость

 ответ:

 

Answer 2

Problem Analysis

We are given that a train traveled a distance of 432 km in 9 hours. We need to determine how much the train needs to increase its speed in order to cover the same distance in 6 hours.

Calculation

To find the train's current speed, we can divide the distance traveled by the time taken: speed = distance / time.

Let's calculate the current speed of the train: - Distance = 432 km - Time = 9 hours

Current speed = 432 km / 9 hours = 48 km/h.

Now, we need to find the new speed that will allow the train to cover the same distance in 6 hours. We can use the same formula:

New speed = distance / time = 432 km / 6 hours = 72 km/h.

To determine how much the train needs to increase its speed, we can subtract the current speed from the new speed:

Increase in speed = new speed - current speed = 72 km/h - 48 km/h = 24 km/h.

Therefore, the train needs to increase its speed by 24 km/h in order to cover the same distance in 6 hours.

Answer

The train needs to increase its speed by 24 km/h in order to cover the same distance of 432 km in 6 hours.

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