Question

Путешественникипо Африке 3/7 всего намеченного пути проехали на верблюдах, 7/12 оставшегося пути- на автомобиле, а затем на плоту спускались по реке. Какую часть всего пути заняло путешествие по реке? Сколько километров Путешественики проплыли по реке, если весь их путь составил 588 км.

Answer 1

верблюд - 3/7 пути, т.е. осталось на
автомобиле и по реке 4/7. Но 7/12 от 4/7 это на автомобиле, т.е перемножив 7/12*4/7 получим часть всего пути на автомобиле = 1/3.
получили
верблюд 3/7 или 9/21
автомобиль 1/3 или 7/21
плот = 1-3/7-1/3= 21/21-9/21-7/21=5/21
если весь путь 588 км, то
верблюд 9/21 от 588 = 252км
автомобиль 7/21 от 588= 196км
плот 5/21 от 588= 140 км.

Answer 2

Calculation of the Journey by Different Modes of Transportation

To determine the portion of the total journey that was spent traveling by river, we need to calculate the distances traveled by each mode of transportation.

Let's break down the information provided:

- 3/7 of the total planned journey was traveled on camels. - 7/12 of the remaining journey was traveled by car. - The remaining portion of the journey was traveled by raft on the river.

To find the distance traveled by each mode of transportation, we need to perform some calculations.

Distance Traveled on Camels

Since 3/7 of the total journey was traveled on camels, we can calculate the distance traveled on camels as follows:

Distance on camels = (3/7) * Total distance

Distance Traveled by Car

To calculate the distance traveled by car, we need to consider the remaining portion of the journey after traveling on camels. This remaining portion is 4/7 of the total journey (since 3/7 was already traveled on camels).

Remaining distance = Total distance - Distance on camels
Distance by car = (7/12) * Remaining distance

Distance Traveled by Raft on the River

The remaining portion of the journey after traveling by car is the distance traveled by raft on the river.

Distance by raft = Remaining distance - Distance by car

Calculation Results

Now, let's calculate the distances:

Given that the total distance of the journey is 588 km, we can substitute this value into the calculations:

1. Distance on camels: ``` Distance on camels = (3/7) * 588 km = 252 km ```

2. Remaining distance: ``` Remaining distance = 588 km - 252 km = 336 km ```

3. Distance by car: ``` Distance by car = (7/12) * 336 km = 196 km ```

4. Distance by raft: ``` Distance by raft = 336 km - 196 km = 140 km ```

Answer:

Therefore, the portion of the total journey that was spent traveling by raft on the river is 140 km. The travelers covered a distance of 140 km by raft.

Please let me know if there's anything else I can help you with!