Question

Поезд прошел 432 км за 9 часов, на сколько ему нужно увеличить скорость, чтобы пройти то же расстояние за 6 часов?

Answer 1

1)432:9=48
2)432:6=72
3)72-48=24

Answer 2

Problem Analysis

We are given that a train traveled 432 km in 9 hours. We need to determine how much the train's speed needs to be increased in order to cover the same distance in 6 hours.

Solution

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 speed at which the train needs to travel to cover the same distance in 6 hours. Let's call this speed "x".

We can set up the equation: distance = speed * time.

For the new time of 6 hours and the same distance of 432 km, we have: 432 km = x km/h * 6 hours.

To solve for "x", we can rearrange the equation: x km/h = 432 km / 6 hours.

Let's calculate the required speed: x km/h = 72 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.