Question

Пути 3 часа и прошел 230 км за первый час он прошел 78 км 500 м за второй на 3 км 800 м меньше чем за первый какое расстояние прошел поезд за третий час

Answer 1

230км-78км500м+(78км500м-3км800м)=76км800м

Answer 2

1)78км500м(78500м)-3км800м(3800м)=74км700м(74700м)-прошёл за второй час. 2)78500+74700=153км200м(153200м)-прошёл за два часа. 3)230км(230000м)-153200=76км800м(76800м)-прошёл за третий час.

Answer 3

Calculation of Distance Traveled by the Train

To calculate the distance traveled by the train in the third hour, we need to determine the difference between the distance covered in the first hour and the distance covered in the second hour.

According to the information provided, the train covered 230 km in the first hour and 78 km 500 m in the second hour, which is 3 km 800 m less than the distance covered in the first hour.

To find the distance covered in the third hour, we subtract 3 km 800 m from the distance covered in the first hour:

Distance covered in the third hour = Distance covered in the first hour - 3 km 800 m

Let's calculate the distance:

Distance covered in the third hour = 230 km - 3 km 800 m

To perform the calculation, we need to convert the distance covered in the second hour from km and m to the same unit as the distance covered in the first hour (km).

Converting 78 km 500 m to km:

78 km + 500 m = 78.5 km

Now we can calculate the distance covered in the third hour:

Distance covered in the third hour = 230 km - 78.5 km

Distance covered in the third hour = 151.5 km

Therefore, the train covered a distance of 151.5 km in the third hour.