Question

Катер курсирует по реке между двумя городами расстояние между которыми 63 км собственная скорость катера 15 километров в час а скорость течения 6 км в час какое время затратит катер на один рейс туда и обратно

Answer 1

63:(15+6)=3ч по течению                                                                                    63:(15-6)=7ч против теч                                                                                       3+7=10ч

Answer 2

Calculation of Time for a Round Trip

To calculate the time it will take for the boat to complete a round trip between the two cities, we need to consider the boat's speed and the speed of the current.

Given: - Distance between the two cities: 63 km - Boat's speed: 15 km/h - Speed of the current: 6 km/h

To calculate the time for the boat to travel from one city to the other, we can use the formula:

Time = Distance / Speed

The boat's speed is the sum of its own speed and the speed of the current. Therefore, the effective speed of the boat is 15 km/h + 6 km/h = 21 km/h.

Using the formula, we can calculate the time for the boat to travel from one city to the other:

Time = 63 km / 21 km/h = 3 hours

Since the boat needs to make a round trip, we need to double the time:

Total Time = 3 hours * 2 = 6 hours

Therefore, the boat will take 6 hours to complete a round trip between the two cities.