Question

От аэродрома до леса вертолёт летел 45 мин со скоростью 3 км/мин. На обратном пути он увеличил скорость на 2 км/мин. Сколько времени затратил вертолёт на обратный путь?

Answer 1

45*3=135 км пролетел вертолет за 45 минут                                                          3+2=5км/мин скорость вертолета,после увеличения скорости на 2 км/мин           135:5=27 минут затратил вертолет на обратный путь

Answer 2

1) 45×3=135 км расстояние от аэродрома до лесса
2) 3+2=5км/мин скорость на обратный путь
3) 135:5=27мин затратил на обратный путь

Answer 3

Calculation of Time for the Return Journey of the Helicopter

To calculate the time taken for the return journey of the helicopter, we need to consider the initial speed and the increased speed on the return journey.

Given: - The helicopter flew from the aerodrome to the forest in 45 minutes at a speed of 3 km/min. - On the return journey, the helicopter increased its speed by 2 km/min.

To find the time taken for the return journey, we can use the formula:

Time = Distance / Speed

Let's calculate the time taken for the return journey step by step:

1. Calculate the distance traveled from the forest to the aerodrome: - Since the helicopter flew for 45 minutes at a speed of 3 km/min, the distance traveled from the aerodrome to the forest is: Distance = Speed * Time = 3 km/min * 45 min = 135 km

2. Calculate the time taken for the return journey: - On the return journey, the helicopter increased its speed by 2 km/min. Therefore, the speed for the return journey is 3 km/min + 2 km/min = 5 km/min. - Using the formula Time = Distance / Speed, we can calculate the time taken for the return journey: Time = Distance / Speed = 135 km / 5 km/min = 27 min

Therefore, the helicopter took 27 minutes for the return journey.

Please note that the information provided is based on the given data and calculations.