Question

Из села одновременно в противоположных направлениях вышел фермер и выехал велосипедист. Когда фермер прошёл 360 м и со скоростью 90 м/ мин, расстояние между ними стало равным 1 км 160 м. C какой скоротью ехал велосипедист?

Answer 1

T=S:V
t=360 м : 90 м/мин=4 мин шел фермер
1 км 160 м - 360 м = 1160 м - 360 м = 800 м проехал велосипедист
V=S:t
V=800 м : 4 мин = 200 м/мин скорость велос-та
200 м/мин = 12 км/час

Answer 2

Problem Analysis

We are given that a farmer and a cyclist leave a village simultaneously in opposite directions. The farmer walks a distance of 360 m with a speed of 90 m/min, and the distance between them becomes 1 km 160 m. We need to find the speed of the cyclist.

Solution

Let's assume the speed of the cyclist is v m/min.

After the farmer walks a distance of 360 m, the distance between them becomes 1 km 160 m. This means that the cyclist has covered a distance of 1 km 160 m + 360 m = 1 km 520 m.

We can set up the following equation to solve for the speed of the cyclist:

1 km 520 m = v * t

where t is the time taken by the cyclist to cover the distance.

To find t, we can use the formula:

t = distance / speed

Substituting the values, we have:

t = 1 km 520 m / v

Now, we can substitute the value of t in the equation:

1 km 520 m = v * (1 km 520 m / v)

Simplifying the equation, we get:

1 km 520 m = 1 km 520 m

This equation is true for any value of v. Therefore, the speed of the cyclist can be any value.

Answer: The speed of the cyclist can be any value.

Explanation

The problem does not provide any information about the relationship between the speed of the farmer and the speed of the cyclist. Therefore, we cannot determine the exact speed of the cyclist based on the given information.