Question

Помогите решить задачу:Лижник пройшов 56 км і йшов весь час з однаковою швидкістю.До зупинки він ішов 4 год, а після 3 год.Скільки км пройшов лижник після зупинки?

Answer 1

4+3=7 ч - время в пути
56:7=8км/ч - скорость лыжника
8*3=24 км после остановки

Answer 2

Problem Analysis

The problem states that a skier traveled a total distance of 56 km at a constant speed. The skier walked for 4 hours before reaching a stop, and then walked for an additional 3 hours. We need to determine how far the skier traveled after reaching the stop.

Solution

To solve this problem, we can use the formula:

Distance = Speed × Time

Let's denote the speed of the skier as S and the distance traveled after reaching the stop as D.

From the information given, we know that the skier walked for 4 hours before reaching the stop. Therefore, the distance traveled before reaching the stop can be calculated as:

Distance before stop = Speed × Time before stop

Similarly, the skier walked for 3 hours after reaching the stop. Therefore, the distance traveled after reaching the stop can be calculated as:

Distance after stop = Speed × Time after stop

We are given that the total distance traveled is 56 km. Therefore, we can write the equation:

Distance before stop + Distance after stop = Total distance

Substituting the formulas for distance before and after the stop, we get:

Speed × Time before stop + Speed × Time after stop = Total distance

We can factor out the speed from both terms:

Speed × (Time before stop + Time after stop) = Total distance

Since the skier traveled at a constant speed, we can simplify the equation to:

Speed × Total time = Total distance

Now we can solve for the distance after the stop:

Distance after stop = Total distance - Distance before stop

Substituting the values given in the problem, we have:

Distance after stop = 56 km - (Speed × 4 hours)

We are not given the speed of the skier, so we cannot calculate the exact distance after the stop without that information. However, we can provide a general formula to calculate the distance after the stop in terms of the speed:

Distance after stop = 56 km - (S × 4 hours)

where S represents the speed of the skier.

Please provide the speed of the skier so that we can calculate the distance after the stop.