Question

От 2 причалов расстояние между которых 120 км вышли одновремено навстречу друг другу два катера 1 катер проходит это растояние за 10 ч а второй за 15 ч через сколько часов они встретятся

Answer 1

Скорость первого катера 120:10=12км/ч, второго 120:15=8км/ч. обшая скорость 12+8=20км/ч. 120:20=6час до встречи.

Answer 2

Решение.
1) 120:10=12 км/ч- скорость 1 катера
2) 120:15=8 км/ч - скорость 2 катера
3) 12+8=20 км/ч - скорость сближения
4) 120:20= через 6 часов.

Answer 3

Problem Analysis

We have two boats that start from two different docks and travel towards each other. The distance between the docks is 120 km. The first boat travels this distance in 10 hours, while the second boat takes 15 hours to cover the same distance. We need to determine how many hours it will take for the two boats to meet.

Solution

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

Let's calculate the speeds of the two boats first. The speed of the first boat is given by speed = distance / time = 120 km / 10 hours = 12 km/h. Similarly, the speed of the second boat is speed = distance / time = 120 km / 15 hours = 8 km/h.

Now, let's calculate the time it will take for the two boats to meet. Since they are traveling towards each other, their combined speed is the sum of their individual speeds. Therefore, the combined speed is 12 km/h + 8 km/h = 20 km/h.

Using the formula time = distance / speed, we can calculate the time it will take for the two boats to meet: time = 120 km / 20 km/h = 6 hours.

Therefore, the two boats will meet after 6 hours.

Answer

The two boats will meet after 6 hours.