Question

Из двух портов вышли одновременно навстречу два судна.: катер и парусник катер шел со скоростью 25 км/ч и через 5 ч встретился с парусником. найди расстояние между портами если скорость парусника 4/5 скорости катера

Answer 1

1) 25 : 5 * 4= 20 (км/ч) - скорость парусника

2) 25 * 5 = 125 (км) - расстояние, которое прошел катер

3) 20 * 5 = 100 (км) - расстояние, которое прошел парусник

4) 125 + 100 = 225 (км)

Ответ: расстояние между портами равно 225 км.

Answer 2

Скорость парусника равна 25 умнож. на 4/5 равно 20 км/ч. Каждый из них был в пути 5 часов. Катер прошел 25 умнож на 5 равно 125 км, а парусник прошел 20 умнож на 5 равно 100 км. Расстояние между портами равно 125 + 100 = 225 км

Answer 3

Problem Analysis

We are given that two vessels, a motorboat (kater) and a sailboat (parusnik), set sail simultaneously from two ports towards each other. The motorboat travels at a speed of 25 km/h and after 5 hours, it meets the sailboat. We need to find the distance between the ports if the sailboat's speed is 4/5 of the motorboat's speed.

Solution

Let's assume that the distance between the ports is D km.

The motorboat travels for 5 hours at a speed of 25 km/h, so the distance it covers is 5 * 25 = 125 km.

At the time of their meeting, the sailboat has also traveled for 5 hours. Since the sailboat's speed is 4/5 of the motorboat's speed, its speed is (4/5) * 25 = 20 km/h. Therefore, the distance covered by the sailboat is 5 * 20 = 100 km.

Since the motorboat and the sailboat meet, the total distance covered by both boats is equal to the distance between the ports. Therefore, we can write the equation:

125 km + 100 km = D km

Simplifying the equation, we find:

D = 225 km

Therefore, the distance between the ports is 225 km.

Answer

The distance between the ports is 225 km.