Question

От двух пристаней,находящихся на расстоянии 528 км, одновременно вышли навстречу друг другу два поезда и встретились через 4 часа. один поезд шел со скоростью 60 км в час. с какой скоростью шел другой поезд

Answer 1

1) 528:4=132(км/час) скорость сближения поездов                                            2) 132-60=72(км/час) скорость 2 поезда                                                                 Ответ: 2 поезд шел со скоростью 72(км/час)

Answer 2

Problem Setup

Two trains, located 528 km apart, start moving towards each other simultaneously. They meet after 4 hours. The speed of one train is 60 km/h. We need to find the speed of the other train.

Solution

Let's denote the speed of the second train as x km/h.

The total distance covered by both trains when they meet is 528 km.

Using the formula: \[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]

We can calculate the distance covered by the first train as \(60 \times 4 = 240\) km.

The distance covered by the second train is \(528 - 240 = 288\) km.

Now, we can use the formula to find the speed of the second train: \[ x = \frac{288}{4} = 72 \, \text{km/h} \]

The speed of the second train is 72 km/h.