Question

Скорость аэросаней в 4 раза больше скорости лыжника.За 3 часа аэросани прошли 168 км.Сколько км пройдет за это же время лыжник?

Answer 1

Скорость лыжника х, тогда скорость аэросаней 4х.                                           168/3=56 км за час едут аэросани                                                                     56/4=14 км за час едет лыжник                                                                          3*14=42 км проедет за 3 часа лыжник                                                                    или 168/4=42

Answer 2

Problem Analysis

We are given that the speed of an aerobus is 4 times greater than the speed of a skier. The aerobus traveled 168 km in 3 hours. We need to determine how far the skier will travel in the same amount of time.

Solution

Let's assume the speed of the skier is x km/h. According to the given information, the speed of the aerobus is 4 times greater than the speed of the skier, so the speed of the aerobus is 4x km/h.

We can use the formula distance = speed × time to calculate the distance traveled by the aerobus and the skier.

For the aerobus: - Speed = 4x km/h - Time = 3 hours - Distance = 168 km

Using the formula, we can write the equation: 168 = (4x) × 3

Simplifying the equation, we have: 168 = 12x

To find the value of x, we divide both sides of the equation by 12: x = 168 / 12 = 14

Therefore, the speed of the skier is 14 km/h.

Now, we can calculate the distance traveled by the skier in 3 hours using the formula: distance = speed × time distance = 14 km/h × 3 hours = 42 km

So, the skier will travel 42 km in the same amount of time.

Answer

The skier will travel 42 km in the same amount of time.