Question

из москвы и Саратова Одновременно навстречу друг другу отправились два поезда средняя скоросьть 1 поезда 62 км /ч.а средняя скоросьть 2 поезда 74 км/ч. какое растояние будет между поездами через 4 ч, если расстояние между Москвой и Саротовом 892

Answer 1

62 км/час + 74 км/час = 136 км/час (скорость сближения)
S=Vt
136 км/час * 4 часа = 544 км (на столько сблизятся)
892 км - 544 км = 348 км
Ответ: между поездами будет 348 км

Answer 2

Problem Analysis

We have two trains traveling towards each other from Moscow and Saratov. The average speed of the first train is 62 km/h, and the average speed of the second train is 74 km/h. We need to find the distance between the trains after 4 hours, given that the distance between Moscow and Saratov is 892 km.

Calculation

To find the distance between the trains after 4 hours, we need to calculate the total distance traveled by both trains in 4 hours and subtract it from the initial distance between Moscow and Saratov.

The distance traveled by the first train in 4 hours can be calculated using the formula: distance = speed * time. Therefore, the distance traveled by the first train is 62 km/h * 4 h = 248 km.

Similarly, the distance traveled by the second train in 4 hours is 74 km/h * 4 h = 296 km.

To find the distance between the trains after 4 hours, we subtract the sum of the distances traveled by both trains from the initial distance between Moscow and Saratov: 892 km - (248 km + 296 km) = 348 km.

Answer

The distance between the trains after 4 hours will be 348 km.