
Автомобиль проехал за 3 часа 185 1/4 км . В первый час он проехал 59 3/4 км .это на 4 1/4 км меньше
чем он проехал во второй час . сколько км проехал автомобиль в третий час пути.

Ответы на вопрос




Calculation of Distance Traveled in the Third Hour
To calculate the distance traveled by the car in the third hour, we need to first determine the total distance traveled in the first two hours.
According to the given information, the car traveled 59 3/4 km in the first hour. This is 4 1/4 km less than the distance traveled in the second hour.
Let's calculate the distance traveled in the second hour:
59 3/4 km + 4 1/4 km = 64 km
Therefore, the car traveled 64 km in the second hour.
To find the total distance traveled in the first two hours, we add the distances traveled in the first and second hours:
59 3/4 km + 64 km = 123 3/4 km
Now, we can calculate the distance traveled in the third hour:
Total distance traveled in the first two hours = 123 3/4 km
Total time taken for the first two hours = 2 hours
Average speed for the first two hours = Total distance / Total time = 123 3/4 km / 2 hours = 61 7/8 km/h
Since the car traveled at an average speed of 61 7/8 km/h for 3 hours, we can calculate the distance traveled in the third hour using the formula:
Distance = Speed × Time
Distance = (61 7/8 km/h) × (1 hour)
To simplify the calculation, let's convert the mixed fraction into an improper fraction:
61 7/8 km/h = (61 × 8 + 7) / 8 km/h = 495/8 km/h
Now, we can calculate the distance traveled in the third hour:
Distance = (495/8 km/h) × (1 hour) = 495/8 km
Therefore, the car traveled 495/8 km in the third hour.
Answer:
The car traveled 495/8 km in the third hour of the journey.

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