Question

Туристам нужно было пройти 32 км. Первые четыре часа они шли со скоростью 5 км в час а оставшуюся часть пути со скоростью 4 км в час. Сколько всего времени были в пути туристы?

Answer 1

4*5=20 км прошли за первые 4 часа
32-20=12 км оставшаяся часть пути
12:4=3 часа понадобилось на оставшийся путь
4+3=7 часов на весь путь
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Answer 2

Calculation of Total Time Taken by Tourists

To calculate the total time taken by the tourists, we need to consider the distance covered at different speeds and the time taken at each speed.

The tourists walked 32 km in total. For the first 4 hours, they walked at a speed of 5 km/h, and for the remaining distance, they walked at a speed of 4 km/h.

Let's calculate the time taken for each part of the journey:

1. Distance covered in the first 4 hours at a speed of 5 km/h: - Distance = Speed × Time - Distance = 5 km/h × 4 h = 20 km

2. Distance remaining after the first 4 hours: - Distance remaining = Total distance - Distance covered in the first 4 hours - Distance remaining = 32 km - 20 km = 12 km

3. Time taken to cover the remaining distance at a speed of 4 km/h: - Time = Distance / Speed - Time = 12 km / 4 km/h = 3 hours

Now, let's calculate the total time taken by adding the time taken for each part of the journey:

- Time taken for the first 4 hours = 4 hours - Time taken for the remaining distance = 3 hours

Therefore, the total time taken by the tourists is 7 hours.

Please note that the above calculations are based on the information provided and assume a constant speed throughout each part of the journey.