# The distance between two points A and B is 20 km. A pedestrian left point A at a speed of 4 km / h.

The distance between two points A and B is 20 km. A pedestrian left point A at a speed of 4 km / h. A cyclist left point B at the same time with him at a speed of 12 km / h. Determine after what time they will meet if the cyclist rides towards the pedestrian?

Let the time after which the pedestrian and the cyclist meet be x hours.

Using the formula S = V * t, where S is the distance, V is the speed, t is the time, you can write the pedestrian’s distance as 4x, and the cyclist’s distance as 12x.

Since, according to the condition, it is given that the distance between two points A and B is 20 km, then we can draw up an equation and, having solved it, find the time:

4x + 12x = 20

16x = 20

x = 20: 16

x = 1.25 hours

Answer: a pedestrian and a cyclist will meet in 1.25 hours One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.