Question

Автомобиль едет с точки А до точки В. За час он проехал 30%, второй час проехал на 4 км больше чем за час , у него осталось 60 км, вопрос с точки А до Точки В сколько км ?

Answer 1

Х км  -  расстояние от А до В
0,3х  -  проехал за первый час
(0,3х + 4)  -  проехал за второй час
60 км  -  осталось

х - 0,3х - (0,3х + 4) = 60
х - 0,3х - 0,3х - 4 = 60
0,4х = 60 + 4
0,4х = 64
х = 64 : 0,4
х = 160 км - расстояние от А до В.

Answer 2

Calculation of the Distance from Point A to Point B

To calculate the distance from Point A to Point B, we can use the information provided. Let's break down the given information step by step:

1. In the first hour, the car traveled 30% of the total distance. 2. In the second hour, the car traveled 4 km more than it did in the first hour. 3. After the second hour, the car had 60 km remaining.

To find the total distance, we need to determine the distance traveled in the first hour and the distance traveled in the second hour.

Let's assume the total distance from Point A to Point B is represented by D.

Calculation Steps:

1. In the first hour, the car traveled 30% of the total distance: - Distance traveled in the first hour = 0.3D

2. In the second hour, the car traveled 4 km more than it did in the first hour: - Distance traveled in the second hour = Distance traveled in the first hour + 4 km - Distance traveled in the second hour = 0.3D + 4 km

3. After the second hour, the car had 60 km remaining: - Distance remaining after the second hour = Total distance - Distance traveled in the first hour - Distance traveled in the second hour - 60 km = D - 0.3D - (0.3D + 4 km)

Now, let's solve the equation to find the value of D, which represents the total distance from Point A to Point B.

Solving the Equation:

60 km = D - 0.3D - (0.3D + 4 km)

Simplifying the equation:

60 km = D - 0.3D - 0.3D - 4 km

Combining like terms:

60 km = D - 0.6D - 4 km

Simplifying further:

60 km = 0.4D - 4 km

Adding 4 km to both sides:

60 km + 4 km = 0.4D

64 km = 0.4D

Dividing both sides by 0.4:

D = 160 km

Therefore, the distance from Point A to Point B is 160 km.

Answer:

The distance from Point A to Point B is 160 km.