Question

Из пункта а и в, расстояние между которыми 260 км, одновременно навстречу друг другу выехали велосипедист и мотоциклист. Скорость велосипедиста - 13км/ч, а мотоциклиста 52 км/ч.1) через какое время после начала движения велосипедист и мотоциклист встретятся?

Answer 1

260 : ( 13+52)=4 ч они встретятся.

Answer 2

Через 4 часа они встретятся

Answer 3

Problem Analysis

We are given that a cyclist and a motorcyclist start simultaneously from points A and B, respectively, which are 260 km apart. The cyclist's speed is 13 km/h, and the motorcyclist's speed is 52 km/h. We need to determine how long it will take for them to meet.

Solution

To solve this problem, we can use the formula: time = distance / speed.

Let's calculate the time it will take for the cyclist and motorcyclist to meet.

The distance between points A and B is 260 km.

The cyclist's speed is 13 km/h, so the time taken by the cyclist to cover the distance is: time_cyclist = distance / speed_cyclist = 260 km / 13 km/h = 20 hours.

The motorcyclist's speed is 52 km/h, so the time taken by the motorcyclist to cover the distance is: time_motorcyclist = distance / speed_motorcyclist = 260 km / 52 km/h = 5 hours.

Since they started simultaneously, the time taken for them to meet will be the same for both the cyclist and the motorcyclist. Therefore, they will meet after 5 hours.

Answer

After the start of their journey, the cyclist and motorcyclist will meet after 5 hours.

Note: The sources provided do not directly answer the question, but the solution is based on the formula for time, distance, and speed.