Question

Из двух концов пустыни, расстояние между которыми 119 км, одновременно навстречу друг другу вышли караваны верблюдов. Один караван двигался со скоростью 8 км/ч. Найдите скорость второго каравана, если через 7 часов они встретились.

Answer 1

1)8*7=56(км)

2)119-56=63(км)

3)63:7=9(км/ч)

Answer 2

Problem Analysis

We are given that two caravans of camels set out from opposite ends of a desert, with a distance of 119 km between them. One caravan is moving at a speed of 8 km/h. We need to find the speed of the second caravan if they meet after 7 hours.

Solution

To find the speed of the second caravan, we can use the formula:

Speed = Distance / Time

Let's calculate the speed of the second caravan.

Calculation

The distance between the two caravans is 119 km, and they meet after 7 hours.

For the first caravan: - Speed = 8 km/h - Time = 7 hours

Using the formula, we can calculate the distance traveled by the first caravan:

Distance = Speed * Time

Distance = 8 km/h * 7 hours = 56 km

Since the two caravans meet, the total distance traveled by both caravans is equal to the distance between them:

Total Distance = Distance of First Caravan + Distance of Second Caravan

119 km = 56 km + Distance of Second Caravan

To find the speed of the second caravan, we can rearrange the equation:

Distance of Second Caravan = Total Distance - Distance of First Caravan

Distance of Second Caravan = 119 km - 56 km = 63 km

Now, we can calculate the speed of the second caravan:

Speed of Second Caravan = Distance of Second Caravan / Time

Speed of Second Caravan = 63 km / 7 hours = 9 km/h

Answer

The speed of the second caravan is 9 km/h.