Question

От пристаней, расстояние между которыми 195 км, одновременно навстречу друг другу отплыли два катера и встретились через 3 часа. Скорость одного катера 30 км/ч. Определи скорость другого катера.

Answer 1

30*3=90(км) проплыл один катер до встречи
195-90=105(км) проплыл другой катер до встречи
105:3=35(км/ч)
Ответ: 35 км/ч скорость другого катера

Answer 2

195 км:3 ч=65 км/ч (сумма скоростей или скорость сближения)
65 км/ч-30 км/ч=35 км/ч
Ответ: скорость другого 35 км/ч

Answer 3

Problem Analysis

We are given that two boats departed from two different ports and met each other after 3 hours. The distance between the ports is 195 km, and the speed of one boat is 30 km/h. We need to determine the speed of the other boat.

Solution

Let's assume the speed of the second boat is x km/h.

We can use the formula: Speed = Distance / Time to find the distance covered by each boat.

The first boat traveled for 3 hours at a speed of 30 km/h, so the distance covered by the first boat is: Distance1 = Speed1 * Time = 30 km/h * 3 hours = 90 km.

The second boat also traveled for 3 hours, so the distance covered by the second boat is: Distance2 = Speed2 * Time = x km/h * 3 hours = 3x km.

Since the total distance between the ports is 195 km, we can write the equation: Distance1 + Distance2 = Total Distance 90 km + 3x km = 195 km

Now we can solve this equation to find the value of x.

90 km + 3x km = 195 km 3x km = 195 km - 90 km 3x km = 105 km x km = 105 km / 3 x km ≈ 35 km/h

Therefore, the speed of the second boat is approximately 35 km/h.

Answer

The speed of the second boat is approximately 35 km/h.