Question

Пешеход и велосипедист начали одновременно движение из двух пунктов навстречу друг другу. Через сколько мин они встретятся если пешеход преодолел весь путь за 48 мин а велосипедист за 16

Answer 1

1) 48/16=3(раза) скорость велосипедиста, больше скорости пешехода.
2)48/4=12(мин) - 1/4  всего пути пешехода
3)16*3/4=12(мин) затратит весь путь.
Ответ- через 12 минут произойдет встреча.

Answer 2

Problem Analysis

We are given that a pedestrian and a cyclist start moving simultaneously from two different points towards each other. We need to determine how many minutes it will take for them to meet if the pedestrian covers the entire distance in 48 minutes and the cyclist covers it in 16 minutes.

Solution

To solve this problem, we can use the concept of relative speed. The relative speed is the sum of the speeds of the two objects moving towards each other.

Let's assume the distance between the two points is D.

The pedestrian covers the entire distance in 48 minutes, so their speed can be calculated as D/48.

Similarly, the cyclist covers the entire distance in 16 minutes, so their speed can be calculated as D/16.

The relative speed of the pedestrian and the cyclist is the sum of their individual speeds: D/48 + D/16.

To find the time it takes for them to meet, we can use the formula:

Time = Distance / Speed

In this case, the distance is D and the speed is D/48 + D/16.

Substituting the values, we get:

Time = D / (D/48 + D/16)

Simplifying the equation, we can find the value of D.

Calculation

Let's calculate the time it takes for the pedestrian and the cyclist to meet.

Time = D / (D/48 + D/16)

Simplifying the equation:

Time = D / (3D/48)

Time = 48 / 3

Time = 16 minutes

Therefore, the pedestrian and the cyclist will meet in 16 minutes.

Answer

The pedestrian and the cyclist will meet in 16 minutes.