Question

Автомобиль проехал 180 км за 3 ч с одинаковой скоростью. из-за гололёда на обратном пути он уменьшил скорость на 15км/ч. сколько времени затратил автомобиль на обратный путь

Answer 1

1) 180÷3=60
2)60÷15=4

Answer 2

180:3=60 км/час -скорость
60-15=45 км/час - новая скорость
180:45=4 часа
отв - на обратный путь затратил 4 часа

Answer 3

Calculation of Time for the Return Journey

To calculate the time taken for the return journey, we need to consider the initial speed of the car and the reduced speed due to the icy road conditions.

Given: - Distance traveled: 180 km - Time taken for the forward journey: 3 hours - Speed reduction on the return journey: 15 km/h

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

1. Calculate the initial speed of the car using the formula: Speed = Distance / Time. - Forward journey speed: 180 km / 3 hours = 60 km/h

2. Calculate the reduced speed for the return journey by subtracting 15 km/h from the initial speed. - Return journey speed: 60 km/h - 15 km/h = 45 km/h

3. Calculate the time taken for the return journey using the formula: Time = Distance / Speed. - Return journey time: 180 km / 45 km/h = 4 hours

Therefore, the car spent 4 hours on the return journey.

Please let me know if there's anything else I can help you with!