Question

4класс Растояние между поселками 30км лыжник прашел за3 часа.На обратном пути он уменьшил скорость на 4 км/ч.Сколько время он потратил на обратный путь?

Answer 1

1) 30:3=10(км/ч) -начальная скорость лыжника
2) 10-4=6(км/ч)- скорость лыжника на обратном пути
3) 30:6= 5 (ч)- шёл лыжник обратно
Ответ: На обратный путь лыжник потратил 5 ч

Answer 2

Calculation of Time for the Return Journey

To calculate the time taken for the return journey, we need to consider the reduced speed of the skier.

Given: - Distance between the villages: 30 km - Time taken for the forward journey: 3 hours - Speed reduction on the return journey: 4 km/h

To find the time taken for the return journey, we can use the formula:

Time = Distance / Speed

Let's calculate the time taken for the return journey step by step:

1. Calculate the speed for the return journey: - Speed for the forward journey: Unknown - Speed reduction: 4 km/h - Speed for the return journey: Speed for the forward journey - Speed reduction

2. Calculate the time taken for the return journey using the formula: - Time for the return journey = Distance / Speed for the return journey

Let's calculate the time taken for the return journey using the given information:

1. Calculate the speed for the return journey: - Speed for the forward journey: Unknown - Speed reduction: 4 km/h - Speed for the return journey: Unknown - 4 km/h

2. Calculate the time taken for the return journey: - Time for the return journey = 30 km / (Unknown - 4 km/h)

Unfortunately, the exact speed for the forward journey is not provided in the question. Without this information, we cannot calculate the time taken for the return journey accurately.

If you have any additional information or if there is anything else I can assist you with, please let me know!