Task 1 - 030711 A rectangular potato field is $250 \mathrm{~m}$ wide and $315 \mathrm{~m}$ long. The row spacing in the width is $62.5 \mathrm{~cm}$. On both sides, half a row spacing is left free. The plant spacing in the length is $35 \mathrm{~cm}$.

On both sides, half a plant spacing is also left free. To approximately determine the total yield of the field, a diagonal sample is taken, i.e., 100 of the plants lying on a diagonal are dug up. These plants yielded $65.4 \mathrm{~kg}$ of potatoes.

What is the expected total yield?
There are 400 rows with 900 plants each. The 360,000 plants are expected to yield a total of 235 tons of potatoes.