Question

До станции поезд шёл со скоростью 60 км/ч и прошёл 180 км. До следующей остановки он шёл со скоростью 70 км/ч ещё 280 км. За какое время он прошёл весь путь?

Answer 1

180/60=3 часа он шёл до первой остановки                                                                                             280/70=4  часа он шёл от первой до второй остановки                                                                        3+4=7 часов составлял весь путь овтобуса               

Answer 2

180/60+280/70=3+4=7 часов

Answer 3

Calculation of the Total Time Taken

To calculate the total time taken for the entire journey, we need to find the time taken for each segment of the journey and then add them together.

Let's break down the journey into two segments:

1. The first segment: The train traveled a distance of 180 km at a speed of 60 km/h. 2. The second segment: The train traveled a distance of 280 km at a speed of 70 km/h.

To find the time taken for each segment, we can use the formula:

Time = Distance / Speed

1. Time taken for the first segment: - Distance = 180 km - Speed = 60 km/h - Time = 180 km / 60 km/h = 3 hours

2. Time taken for the second segment: - Distance = 280 km - Speed = 70 km/h - Time = 280 km / 70 km/h = 4 hours

Now, we can find the total time taken for the entire journey by adding the times for each segment:

Total Time = Time for the first segment + Time for the second segment = 3 hours + 4 hours = 7 hours

Therefore, the train took a total of 7 hours to complete the entire journey.