Question

2 трактора вспахали землю за 6 часов. По отдельности 1 трактор вспахал эту же площадь за 15 часов. Вопрос за сколько часов вспашет эту же площадь 2 трактор?

Answer 1

пусть поле  примем за 1,

тогда первый в час пашет 1/15 поля,а за 6 часов 6/15=2/5

значит второй за 6 часов вспашет 3/5 поля

а это 3/5:6=1/10 вспашет второй за час.

значит чтобы вспахать поле второму трактору понадобиться 10 часов

 

Answer 2

Given Information:

- Two tractors plowed the same area in 6 hours. - One tractor plowed the same area in 15 hours.

Calculation:

To find out how long it will take two tractors to plow the same area, we can use the concept of work. The work done is directly proportional to the time taken.

Let's assume that the area plowed by one tractor in 15 hours is equal to 1 unit.

- One tractor plows the same area in 15 hours, so the work done by one tractor is 1 unit. - Two tractors plow the same area in 6 hours, so the work done by two tractors is 1 unit.

Now, let's find out how long it will take two tractors to plow the same area.

- If two tractors plow the same area in 6 hours, then the work done by two tractors in 6 hours is 1 unit. - If the work done by two tractors in 6 hours is 1 unit, then the work done by two tractors in 1 hour is 1/6 unit.

Therefore, it will take two tractors 1 hour to plow the same area.

Answer:

Two tractors will plow the same area in 1 hour.