Question

От пристани С к пристани К отошел теплоход со скоростью 40км/ч.Через 3ч от пристани К навстречу ему отошел катер со скоростью 35км/ч и встретил теплоход через 4 ч после своего выхода.Найди расстояние между пристанями.

Answer 1

40*3=120км проплыл теплоход от пристани С
(35+40)*4=195км проплыли до встречи
120+195=315км

Answer 2

Problem Analysis

We are given the following information: - A boat departs from port S to port K with a speed of 40 km/h. - After 3 hours, a motorboat departs from port K towards the boat with a speed of 35 km/h. - The motorboat meets the boat 4 hours after its departure.

We need to find the distance between the two ports.

Solution

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

The boat travels for 3 hours at a speed of 40 km/h, so it covers a distance of 3 * 40 = 120 km.

The motorboat travels for 4 hours at a speed of 35 km/h, so it covers a distance of 4 * 35 = 140 km.

When the motorboat meets the boat, the total distance covered by both is equal to the distance between the two ports:

120 km + 140 km = d km

Simplifying the equation:

260 km = d km

Therefore, the distance between the two ports is 260 km.

Answer: The distance between the two ports is 260 km.