Question

Из двух сёл растояние между которыми 40км одновременно в одном направлении выехали автобус и велосипед скорость велосипеда 15км/ч а скорость автобуса 35км/ч через сколько часов они встретятся

Answer 1

1)  35-15= 20 км/ч
2)40/20=2 ч
Ответ: через 2 часа

Answer 2

Problem Analysis

We are given that the distance between two villages is 40 km. An bus and a bicycle start simultaneously from one village in the same direction. The bicycle has a speed of 15 km/h, and the bus has a speed of 35 km/h. We need to determine how many hours it will take for them to meet.

Solution

To solve this problem, we can use the formula: time = distance / speed. We can calculate the time it takes for both the bicycle and the bus to cover the distance between the villages, and then find the time it takes for them to meet.

Let's calculate the time it takes for the bicycle and the bus to cover the distance between the villages:

- Time taken by the bicycle: time_bicycle = distance / speed_bicycle = 40 km / 15 km/h. - Time taken by the bus: time_bus = distance / speed_bus = 40 km / 35 km/h.

Now, let's find the time it takes for them to meet. Since they are traveling in the same direction, the relative speed between them is the difference in their speeds:

- Relative speed: relative_speed = speed_bus - speed_bicycle = 35 km/h - 15 km/h.

To find the time it takes for them to meet, we can use the formula: time_meet = distance / relative_speed.

Substituting the values, we have:

- time_meet = 40 km / (35 km/h - 15 km/h).

Now, let's calculate the time it takes for them to meet:

- time_meet = 40 km / 20 km/h.

Simplifying, we find:

- time_meet = 2 hours.

Therefore, the bus and the bicycle will meet after 2 hours.

Answer

The bus and the bicycle will meet after 2 hours.