Question

пешеход и всадник начали движение Одновременно навстречу друг другу из двух поселков расстояние между которыми 12 километров Какое расстояние будет между ними через четверть часа если скорость движения пешехода 8 километров в час а скорость движения всадника в два раза больше

Answer 1

Calculation of Distance

To calculate the distance between the pedestrian and the rider after a quarter of an hour, we need to consider their respective speeds and the time elapsed.

Given: - Distance between the two settlements: 12 kilometers - Speed of the pedestrian: 8 kilometers per hour - Speed of the rider: twice the speed of the pedestrian

Let's calculate the distance between them after a quarter of an hour.

Calculation Steps:

1. Convert the time to hours: 15 minutes is equal to 0.25 hours. 2. Calculate the distance covered by the pedestrian in a quarter of an hour: distance_pedestrian = speed_pedestrian * time. 3. Calculate the distance covered by the rider in a quarter of an hour: distance_rider = speed_rider * time. 4. Calculate the total distance between them after a quarter of an hour: total_distance = distance_pedestrian + distance_rider.

Calculation:

1. Convert the time to hours: - Time: 15 minutes = 0.25 hours.

2. Calculate the distance covered by the pedestrian in a quarter of an hour: - Speed of the pedestrian: 8 kilometers per hour. - Time: 0.25 hours. - Distance covered by the pedestrian: distance_pedestrian = 8 km/h * 0.25 h = 2 km.

3. Calculate the distance covered by the rider in a quarter of an hour: - Speed of the rider: twice the speed of the pedestrian = 2 * 8 km/h = 16 km/h. - Time: 0.25 hours. - Distance covered by the rider: distance_rider = 16 km/h * 0.25 h = 4 km.

4. Calculate the total distance between them after a quarter of an hour: - Distance covered by the pedestrian: 2 km. - Distance covered by the rider: 4 km. - Total distance between them: total_distance = 2 km + 4 km = 6 km.

Therefore, the distance between the pedestrian and the rider after a quarter of an hour will be 6 kilometers.

Please note that the calculation assumes a constant speed for both the pedestrian and the rider throughout the quarter of an hour.

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