Question

Легкоатлет бежал в гору 30 минут со скоростью 10 км ч затем еще один час со скоростью 15 км ч какое расстояние он преодолел?

Answer 1

30 минут - 1/2 от часа 
10:2=5 км 
15×1=15 км
15+5=20

Answer 2

Calculation of the Distance Covered

To calculate the distance covered by the athlete, we need to consider two different segments of the run: the first segment where the athlete runs uphill for 30 minutes at a speed of 10 km/h, and the second segment where the athlete continues running for another hour at a speed of 15 km/h.

Let's calculate the distance covered in each segment separately and then add them together to find the total distance.

1. Distance covered in the first segment: - Time: 30 minutes = 0.5 hours - Speed: 10 km/h - Distance = Speed × Time = 10 km/h × 0.5 hours = 5 km

2. Distance covered in the second segment: - Time: 1 hour - Speed: 15 km/h - Distance = Speed × Time = 15 km/h × 1 hour = 15 km

Now, let's add the distances from both segments to find the total distance covered by the athlete:

Total distance = Distance in the first segment + Distance in the second segment = 5 km + 15 km = 20 km

Therefore, the athlete covered a total distance of 20 kilometers.