Question

Первые 3 часа поезд ехал со средней скоростью 66 км/ч,а оставшиеся 4 ч - со средней скоростью 62 км/ч.Какое растояние он проехал за это время?

Answer 1

66*3=198
62*4=248
248-198=50
ответ: 50 км,ч

Answer 2

1) 66*3=198 км проехал за первые 3 часа2) 62*4=248 км проехал поезд за следующие 4 часа3) 198+248=446км проехал поезд за 7 часов

Answer 3

Calculation of Distance Traveled

To calculate the distance traveled by the train, we need to find the sum of the distances covered during the first 3 hours and the remaining 4 hours.

The distance covered in the first 3 hours can be calculated by multiplying the average speed of 66 km/h by the duration of 3 hours:

Distance for the first 3 hours = 66 km/h * 3 hours = 198 km.

Similarly, the distance covered in the remaining 4 hours can be calculated by multiplying the average speed of 62 km/h by the duration of 4 hours:

Distance for the remaining 4 hours = 62 km/h * 4 hours = 248 km.

To find the total distance traveled, we add the distances covered during the first 3 hours and the remaining 4 hours:

Total distance traveled = Distance for the first 3 hours + Distance for the remaining 4 hours = 198 km + 248 km = 446 km.

Therefore, the train traveled a total distance of 446 kilometers during this time period.

Please note that the above calculation assumes a constant speed throughout each respective time period and does not account for any potential variations or stops along the route.