Question

Поезд шёл 2 ч со скоростью 78 км/ч и 3 ч со скоростью 80 км/ч.Какой путь прошёл поезд?

Answer 1

78*2=156 км - первые два часа
80*3= 240 км - вторые три часа
156+240 = 396 км

Answer 2

Calculation of the Distance Traveled by the Train

To calculate the distance traveled by the train, we need to find the sum of the distances covered during the two time intervals.

The train traveled for 2 hours at a speed of 78 km/h and 3 hours at a speed of 80 km/h.

To find the distance traveled during the first interval, we can use the formula:

Distance = Speed × Time

For the first interval, the distance traveled is:

Distance1 = Speed1 × Time1 = 78 km/h × 2 h = 156 km.

Similarly, for the second interval, the distance traveled is:

Distance2 = Speed2 × Time2 = 80 km/h × 3 h = 240 km.

To find the total distance traveled by the train, we add the distances covered during the two intervals:

Total Distance = Distance1 + Distance2 = 156 km + 240 km = 396 km.

Therefore, the train traveled a total distance of 396 kilometers.

Please let me know if there is anything else I can help you with!