Question

Из одного города в другой вышел пешеход. когда он прошел 27 км в след за ним выехал автомобиль со скоростью в 10 раз больше чем у пешехода. второго города она достигли одновременно.чему равно в километрах расстояние между городами.

Answer 1

Дано
V1=a
V2=10a
S1=S-27
S2=S
t1=t2
S-?
t=(S-27)/a
t=S/10a    S=30км

Answer 2

Problem Analysis

We are given that a pedestrian walks 27 km from one city to another, and after the pedestrian has walked 27 km, a car starts from the first city and travels at a speed 10 times faster than the pedestrian. We need to find the distance between the two cities.

Solution

Let's assume the speed of the pedestrian is x km/h. Since the car is traveling at a speed 10 times faster than the pedestrian, the speed of the car is 10x km/h.

To find the distance between the two cities, we can use the formula:

Distance = Speed × Time

Let's denote the time taken by the pedestrian to walk 27 km as t hours. Since the speed of the pedestrian is x km/h, we can write:

27 = x × t Similarly, let's denote the time taken by the car to cover the same distance as t' hours. Since the speed of the car is 10x km/h, we can write:

27 = 10x × t' Since the pedestrian and the car reach the second city at the same time, the time taken by both of them is the same. Therefore, we can equate t and t':

t = t'

Now, we can solve the equations to find the values of x and t:

27 = x × t 27 = 10x × t' Since t = t', we can equate the two equations:

x × t = 10x × t

Simplifying, we get:

t = 10t

Dividing both sides by t, we get:

1 = 10

This equation is not possible, which means there is no solution that satisfies the given conditions. Therefore, we cannot determine the distance between the two cities based on the information provided.

Conclusion

Based on the given information, we cannot determine the distance between the two cities. The problem seems to have some inconsistencies or missing information.