Question

Первый трактор за 8 ч. вспахал 16 га. За сколько часов второй трактор вспашет 36 га, если за час он вспахивает на 1 га больше чем первый?

Answer 1

16:8=2(га) в час вскапывает первый трактор
2+1=3(га) в час вспахивает 2 трактор
36:3=12(ч. Второй трактор вспашет 36 га
ответ: 12 часов

Answer 2

Problem Analysis

To solve this problem, we need to find out how many hours the second tractor will take to plow 36 hectares, given that it plows 1 hectare more per hour than the first tractor.

Solution

Let's calculate the time it takes for the second tractor to plow 36 hectares.

The first tractor plows 16 hectares in 8 hours, which means it plows at a rate of 2 hectares per hour.

The second tractor plows 1 hectare more per hour than the first tractor, so it plows at a rate of 3 hectares per hour.

To find out how many hours the second tractor will take to plow 36 hectares, we can use the formula: \[ \text{Time} = \frac{\text{Area}}{\text{Rate}} \]

Plugging in the values: \[ \text{Time} = \frac{36}{3} = 12 \text{ hours} \]

The second tractor will take 12 hours to plow 36 hectares.