Question

Автомобилист доехал до соседнего города за 4 часа со скорость 40 км/ч. на обратном пути он увеличел скорость в 2 раза. сколько времени длилась поездка в соседний город и обратно

Answer 1

На обратном пути автомобилист ехал 2 часа а всё вместе 6 часов

Answer 2

Calculation of Travel Time

To calculate the total travel time for the round trip, we need to consider the time it took to travel to the neighboring city and the time it took to return.

Let's break down the problem step by step:

1. The driver traveled to the neighboring city at a speed of 40 km/h. 2. The distance to the neighboring city is not provided, so we'll assume it's the same distance for both the outbound and return trips. 3. On the return trip, the driver increased their speed by 2 times, which means they traveled at a speed of 40 km/h * 2 = 80 km/h.

To calculate the travel time for each leg of the trip, we can use the formula:

Travel Time = Distance / Speed

Since the distance is the same for both the outbound and return trips, we can calculate the total travel time by adding the travel time for each leg.

Let's calculate the travel time for each leg:

1. Outbound trip: - Speed: 40 km/h - Travel Time: Distance / 40 km/h

2. Return trip: - Speed: 80 km/h - Travel Time: Distance / 80 km/h

To find the total travel time, we can add the travel times for the outbound and return trips:

Total Travel Time = Outbound Travel Time + Return Travel Time

Now, let's calculate the total travel time.

Calculation

Since the distance is not provided, we cannot calculate the exact travel time. However, we can provide a general formula for calculating the total travel time based on the given information.

Let's assume the distance to the neighboring city is D kilometers.

1. Outbound Travel Time: - Speed: 40 km/h - Travel Time: D / 40 hours

2. Return Travel Time: - Speed: 80 km/h - Travel Time: D / 80 hours

3. Total Travel Time: - Total Travel Time = (D / 40) + (D / 80) hours

Please note that the actual value of the total travel time will depend on the distance to the neighboring city, which is not provided in the question.

I hope this helps! Let me know if you have any further questions.