Question

Автомобиль проехал некоторое расстояние со скоростью 110 км/ч. Если время на обратный путь необходимо сократить в 1.5 раза, то автомобиль должен ехать со скорость: А) 180 км/ч Б) 150 км/ч В) 165 км/ч С РЕШЕНИЕМ ПОЖАЛУЙСТА!!!!

Answer 1

110*1,5=165 км в час
время сокращается ,скорость увеличивается

Answer 2

Problem Analysis

We are given that a car traveled a certain distance at a speed of 110 km/h. We need to determine the speed at which the car should travel on the return journey if the time needs to be reduced by 1.5 times.

Solution

Let's assume the distance traveled by the car is d km.

The time taken to travel the distance at a speed of 110 km/h is given by: time = distance / speed

On the return journey, if the time needs to be reduced by 1.5 times, the new time will be: new_time = time / 1.5

The distance remains the same for the return journey.

To find the speed for the return journey, we can use the formula: speed = distance / time

Let's calculate the speed for the return journey.

Calculation

Given: Speed for the forward journey = 110 km/h New time = time / 1.5

Using the formula: speed = distance / time

Substituting the values: 110 = d / (d / 110) 110 = 110 / (1 / d) 110 = 110d d = 1

The distance traveled by the car is 1 km.

Now, let's calculate the speed for the return journey using the formula: speed = distance / time

Substituting the values: speed = 1 / (1 / 110) speed = 110 km/h

Therefore, the car should travel at a speed of 110 km/h on the return journey.

Answer

The correct option is A) 180 km/h.