The length of the rectangular field is 500 meters, the width is 220 meters less.

The length of the rectangular field is 500 meters, the width is 220 meters less. One seventh of the field is occupied by oats, one second is wheat, the rest is rye. How many hectares does rye occupy? 11,400 covers were brought to the store, two tenths were left in a week. How many covers did you sell in a week?

Let’s find the width of the field:

500 meters – 22 meters = 280 meters.

The width of the field is 280 meters.

Find the area of the field:

500 m * 280 m = 140,000 m².

Under wheat:

140,000 m²: 2 = 70,000 m².

Under oats:

140,000 m²: 7 = 20,000 m².

Under the rye:

140,000 – 70,000 – 20,000 = 50,000 m².

Let’s translate into hectares:

50,000 m² = 5 hectares.

Answer: 5 hectares are occupied by rye.

If there are 2/10 left, then they sold:

1 – 2/10 = 8/10 of all covers.

Let’s calculate 8/10 from 11,400 covers:

11400 * 8/10 = 9120 covers.

Answer: 9120 covers were sold in the store in a week.