Question

Два лыжника вышли одновременно навстречу друг другу из двух населённых пунктов,расстояние между которыми 66 км. скорость первого 12 км/ч,второго-10км/ч. через какое время они встретятьсч?

Answer 1

Лыжники встретятся через х часов

12х+10х=66

22х=66

х=3 (часа)                                                              

Answer 2

Problem Analysis

We have two skiers starting simultaneously from two different locations and moving towards each other. The distance between the two locations is 66 km. The first skier has a speed of 12 km/h, while the second skier has a speed of 10 km/h. We need to determine the time it takes for them to meet.

Solution

To find the time it takes for the skiers to meet, we can use the formula:

Time = Distance / Relative Speed

The relative speed is the sum of the speeds of the two skiers, as they are moving towards each other.

Let's calculate the time it takes for the skiers to meet.

Calculation

The distance between the two locations is 66 km. The speed of the first skier is 12 km/h. The speed of the second skier is 10 km/h.

The relative speed of the skiers is 12 km/h + 10 km/h = 22 km/h.

Using the formula, we can calculate the time it takes for the skiers to meet:

Time = Distance / Relative Speed

Time = 66 km / 22 km/h

Time = 3 hours

Therefore, the skiers will meet after 3 hours.

Answer

The two skiers will meet after 3 hours.