Question

Из двух пристаней удаленных друг от друга на 120 км одновременно в противоположных направлениях отплыли катер и моторная лодка .через 3 часа расстояние между ними стало 270 км.с какой скоростью плылы лодка если скорость катера 34 км в ч

Answer 1

1)270-120=150(км) расстояние                2)150:3=50(км/ч)общяя скорость      3)50-34=16(км/ч) 2 скорость!!

 

 

Answer 2

1) 270 - 120 = 150 км проплыли катр и лодка

2) 150 : 3 = 50 км/ч скорость удаления

3) 50 - 34 = 16 км/ч скорость моторной лодки

Answer 3

Problem Analysis

We are given that a boat and a motorboat set sail from two different piers simultaneously, with a distance of 120 km between them. After 3 hours, the distance between them becomes 270 km. We need to determine the speed of the motorboat, given that the speed of the boat is 34 km/h.

Solution

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

In 3 hours, the boat travels a distance of 34 km/h * 3 h = 102 km. The motorboat also travels a distance of x km/h * 3 h = 3x km.

The total distance between them after 3 hours is 270 km. Therefore, we can write the equation:

120 km + 102 km + 3x km = 270 km

Simplifying the equation:

222 km + 3x km = 270 km

Subtracting 222 km from both sides:

3x km = 48 km

Dividing both sides by 3:

x km = 16 km/h

Therefore, the speed of the motorboat is 16 km/h.

Answer

The motorboat was traveling at a speed of 16 km/h.

Note: The sources provided did not directly answer the question, so the solution was derived using mathematical calculations.