Question

Два лыжника вышли одновременно навстречу друг другу из двух поселков,расстояние между которыми 48 км.Скорость одного лыжника 11 км/ч,а другого-13 км/ч. Через сколько часов лыжники встретяться?

Answer 1

скорость сближения лыжников 11км/ч+13км/ч=24км/ч

48км:24км/ч=2 часа

Ответ:через 2 часа лыжники встретятся

 

 

 

 

Answer 2

Problem Analysis

Two skiers start simultaneously from two different villages and are skiing towards each other. The distance between the villages is 48 km. The speed of one skier is 11 km/h, while the speed of the other skier is 13 km/h. We need to determine how many hours it will take for the skiers to meet.

Solution

To solve this problem, we can use the formula:

Time = Distance / Speed

Let's calculate the time it takes for each skier to cover the distance between the villages.

Skier 1: - Distance: 48 km - Speed: 11 km/h - Time = 48 km / 11 km/h

Skier 2: - Distance: 48 km - Speed: 13 km/h - Time = 48 km / 13 km/h

To find the total time it takes for the skiers to meet, we can add the individual times together.

Total Time = Time for Skier 1 + Time for Skier 2

Let's calculate the total time.

Calculation

Using the given values, we can calculate the time it takes for each skier to cover the distance between the villages.

Time for Skier 1: - Distance: 48 km - Speed: 11 km/h - Time = 48 km / 11 km/h = 4.3636 hours (rounded to 4 decimal places)

Time for Skier 2: - Distance: 48 km - Speed: 13 km/h - Time = 48 km / 13 km/h = 3.6923 hours (rounded to 4 decimal places)

Total Time = Time for Skier 1 + Time for Skier 2 = 4.3636 hours + 3.6923 hours = 8.0559 hours (rounded to 4 decimal places)

Therefore, the skiers will meet after approximately 8.056 hours.

Answer

The skiers will meet after approximately 8.056 hours.

Note: The answer is rounded to 4 decimal places for simplicity.