Question

из двух городов выехали навстречу друг другу два поезда: один со скоростью 55 км/ч,а другой со скоростью 65км/ч.Какое расстояние будет между поездами за час до встречи?

Answer 1

55+65=120-общая скорость

120/1=120-120 км :) 

 

Answer 2

Calculation of Distance between Trains

To calculate the distance between the two trains, we can use the formula:

Distance = Speed x Time

Given that one train is traveling at a speed of 55 km/h and the other train is traveling at a speed of 65 km/h, we need to determine the time it takes for the trains to meet.

Let's assume that the time it takes for the trains to meet is t hours.

Therefore, the distance covered by the first train in t hours is 55t km, and the distance covered by the second train in t hours is 65t km.

The total distance between the two trains is the sum of the distances covered by each train:

Total Distance = Distance covered by Train 1 + Distance covered by Train 2

Total Distance = 55t + 65t

Simplifying the equation:

Total Distance = 120t

Now, we need to find the value of t when the trains meet. We know that the time it takes for the trains to meet is 1 hour before they meet.

Therefore, t = 1 hour.

Substituting the value of t into the equation:

Total Distance = 120 x 1

Total Distance = 120 km

So, the distance between the two trains 1 hour before they meet is 120 km.