Question

Геологи проделали путь длиной 2450 км. 10% пути они пролетели на самолете, 60% пути проплыли на лодках, а остальную часть прошли пешком. Сколько километров геологи прошли пешком?

Answer 1

10+60=70%
100-70=30% пути геологи прошли пешком
По форме диагонального креста - 
2450 - 100%
х - 30%
Подставим - 2450*30\100=735 км - пешком
2450*10\100=245 км- на самолетах
2450*60\100=1470 км- на лодках
Ответ 735 километров геологи прошли пешком.

Answer 2

Answer in detail. Geologists traveled a distance of 2450 km. 10% of the way they flew by plane, 60% of the way they sailed by boats, and the rest of the way they walked on foot. How many kilometers did the geologists walk on foot?

To answer this question, we need to find out how many kilometers the geologists flew by plane and how many kilometers they sailed by boats. Then, we can subtract these distances from the total distance of 2450 km to get the remaining distance that they walked on foot.

We can use the following formula to calculate the distance for each mode of transportation:

distance = percentage * total distance / 100

For example, to find the distance that the geologists flew by plane, we can plug in the values as follows:

distance = 10 * 2450 / 100 distance = 245 km

Similarly, to find the distance that the geologists sailed by boats, we can use the same formula with different values:

distance = 60 * 2450 / 100 distance = 1470 km

Now, to find the distance that the geologists walked on foot, we can subtract the distances that they flew by plane and sailed by boats from the total distance of 2450 km:

distance = 2450 - 245 - 1470 distance = 735 km

Therefore, the geologists walked 735 km on foot.