Question

Школьники во время каникул совершили поход. Весь путь составил 20 км. Первые 12 км двигались со скоростью 6 км/ч и сделали привал на 3 часа, а потом шли со скоростью 5км/ч. Сколько времени школьники были в походе

Answer 1

12 : 6 = 2 часа - шли со скоростью 6 км/ч
20 - 12 = 8 км - шли со скоростью 5 км/ч
8 : 5 = 1 3/5 часа - шли со скоростью 5 км/ч
Всего: 2 + 3 + 1 3/5 = 6 3/5 часа или 6 ч 36 мин

Answer 2

Calculation of Time Spent on the Hike

To calculate the time spent on the hike, we need to consider the distances covered at different speeds and the duration of the break.

The total distance covered during the hike is 20 km. The first 12 km were covered at a speed of 6 km/h, and then there was a break of 3 hours. After the break, the remaining 8 km were covered at a speed of 5 km/h.

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

Time = Distance / Speed

Let's calculate the time spent on each part of the hike:

1. Time spent on the first part of the hike (12 km at 6 km/h): - Time = 12 km / 6 km/h = 2 hours

2. Time spent on the break: - The break lasted for 3 hours.

3. Time spent on the second part of the hike (8 km at 5 km/h): - Time = 8 km / 5 km/h = 1.6 hours

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

Total Time = Time spent on the first part + Time spent on the break + Time spent on the second part = 2 hours + 3 hours + 1.6 hours = 6.6 hours

Therefore, the schoolchildren were on the hike for 6.6 hours.