Question

Из Москвы из Ростова-на-Дону одновременно вышли навстречу друг другу два поезда.Поезд из Москвы шёл со скоростью 65км/ч, а поезд из Ростова-на-Дону- со скоростью на 7км/ч меньше. На каком расстоянии друг от друга будут поезда через 6ч после начала движения,если расстояние между Москвой и Растовом-на-Дону 1230км?

Answer 1

65-7=58км/ч скоростьвторого поезда
(65+58)*6=738 км прошли оба поезда вместе за 6ч
1230-738=492 км между ними через 6ч

Answer 2

Calculation of the Distance between the Trains

To calculate the distance between the two trains after 6 hours of travel, we need to determine the distance each train has traveled during that time.

The train from Moscow is traveling at a speed of 65 km/h, while the train from Rostov-on-Don is traveling at a speed 7 km/h slower. Therefore, the train from Rostov-on-Don is traveling at a speed of 65 km/h - 7 km/h = 58 km/h.

To find the distance traveled by each train after 6 hours, we can use the formula:

Distance = Speed × Time

For the train from Moscow: Distance = 65 km/h × 6 h = 390 km

For the train from Rostov-on-Don: Distance = 58 km/h × 6 h = 348 km

Therefore, after 6 hours of travel, the train from Moscow will be 390 km away from its starting point, and the train from Rostov-on-Don will be 348 km away from its starting point.

Calculation of the Distance between the Trains

To find the distance between the two trains, we need to subtract the distance traveled by the train from Rostov-on-Don from the total distance between Moscow and Rostov-on-Don.

The total distance between Moscow and Rostov-on-Don is given as 1230 km.

Therefore, the distance between the two trains after 6 hours of travel can be calculated as:

Distance between the trains = Total distance - Distance traveled by the train from Rostov-on-Don

Distance between the trains = 1230 km - 348 km = 882 km

Therefore, the two trains will be approximately 882 km apart after 6 hours of travel.