Question

Помогите Школьники во время каникул совершили велосипедный поход. Весь пут составил 79,2 км. Первые 48,6 к они двигались со скоростью 12,15 км/ч и сделали привал 2,5 ч, а потом ехали со скоростью 15,3 км/ч. Сколько времени школьники были в походе?​​

Answer 1

48,6 км / 12,15 километра в час = 4 часа.

79,2 км - 48,6 км = 30,6 км.

30,6 км / 15,3 километра в час = 2 часа.

4 часа + 2,5 часа + 2 часа = 8,5 часа (8 часов 30 минут).

Школьники были в походе 8,5 часа. оде 8,5 часа.

Answer 2

Calculation of the Total Time Spent on the Trip

To calculate the total time spent on the trip, we need to consider the time spent at the rest stop and the time spent cycling at different speeds.

The distance covered during the trip is 79.2 km. The first 48.6 km were covered at a speed of 12.15 km/h, and a rest stop of 2.5 hours was taken. After the rest stop, the remaining distance of 30.6 km was covered at a speed of 15.3 km/h.

To calculate the time spent on the trip, we can use the formula:

Time = Distance / Speed

Let's calculate the time spent on each segment of the trip:

1. Time spent on the first segment (48.6 km at 12.15 km/h): - Time = 48.6 km / 12.15 km/h = 4 hours

2. Time spent at the rest stop: - Time = 2.5 hours

3. Time spent on the second segment (30.6 km at 15.3 km/h): - Time = 30.6 km / 15.3 km/h = 2 hours

Now, let's calculate the total time spent on the trip:

Total Time = Time spent on the first segment + Time spent at the rest stop + Time spent on the second segment

Total Time = 4 hours + 2.5 hours + 2 hours = 8.5 hours

Therefore, the schoolchildren were in the trip for a total of 8.5 hours.

Please note that the above calculation assumes a constant speed throughout each segment of the trip and does not account for any additional breaks or deviations from the planned route.