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Plant spacing of cotton is 0.30 meters. Row spacing is 0.5. If you want to know how much lint you can harvest per hectare, you can get 10000 square meters Plant spacing of cotton is 0.30 m, row spacing is 0.5, and lint per house is 0.022 kg. How much can be harvested at 0.24 cm? 1 cm is equal to 10000 m2 How much can 0.24 hectare yield? 1 hectare is equal to 10000 square meters
0.24*10000=2400㎡
Even if it is 40m * 60m (30 * 80 is OK, other algorithms are the same)
60 / 0.3 = 200 plants per row
40 / 0.5 = 80, 80 lines in total
Total 200 * 80 = 16000
16000*0.022=1452kg
Transplanting rice seedlings on a B hectare rice field. If 10 people transplant rice seedlings, it will take M days to complete. If a rice transplanter works, it will be completed 3 days earlier than 10 people. The working efficiency of a rice transplanter is the same as that of a person______ Times
If the working efficiency of a rice transplanter is x and that of a person is y, then 10my = (M-3) X. so xy = 10mm − 3
In a rice field of a hectare, it takes m days for 10 people to transplant rice seedlings. If the work of a rice transplanter is completed 3 days earlier than that of 10 people, it takes one day
How many times is the working efficiency of a rice transplanter more than that of a person?
One transplanter transplants A / (M-3) hectare of seedlings per day, and one person transplants A / (10m) hectare of seedlings per day,
The working efficiency of a rice transplanter is [A / (M-3)] / [A / (10m)] = 10m / (M-3) times of that of a person
RELATED INFORMATIONS
- 1. In a 6-hectare paddy field, if the rice seedling with 1.5 decimeter row spacing and 1 decimeter Zhu spacing produces 30 grams of rice per Zhu seedling, how many kilograms of rice is there in this field?
- 2. To cultivate new rice varieties, if the first generation gets 120 seeds, and from the first generation to the next generation, each seed of the next generation will get 120 seeds, and the seeds of this new rice variety can be obtained in the nth generation______ A grain
- 3. One hectare of paddy field can yield C tons of paddy, and how many tons of paddy can be harvested in 0.6 hectare of paddy field
- 4. How many jin of rice can you get from one mu of paddy field? It's said that one mu of paddy field can yield 1000 Jin of rice. I don't know what the yield of hybrid rice is now,
- 5. A triangular paddy field is 180 meters long at the bottom and 150 meters high. In this field, 16200 kg of rice is harvested, and () kg of rice is produced per hectare on average?
- 6. A farm planted three kinds of vegetables: tomatoes 600 square meters, accounting for 50% of the total area, cucumber 30% of the total area, the rest of the eggplant, cucumber planted how many square meters, eggplant planted how many square meters What can broken line statistical chart not only express, but also reflect
- 7. There is a professional grower, a total of 975 hectares of vegetables, eggplant, tomatoes, cucumbers, of which the area ratio of tomatoes and cucumbers is 3:2, cucumbers and There is a specialized farmer who grows 975 hectares of vegetables. He grows eggplants, tomatoes and cucumbers. The area ratio of tomatoes to cucumbers is 3:2, and that of cucumbers to eggplants is 5:7. How many hectares of tomatoes, cucumbers and eggplants have been planted?
- 8. A rectangular vegetable field is 24 meters long and half as wide. It can receive 2 kg of tomatoes per square meter. How many kg of tomatoes can this vegetable field receive?
- 9. Uncle Wang, a farmer, has 600 square meters of vegetable land, of which two fifths are tomatoes, and the rest are cucumbers and eggplants according to the area ratio of 3:1. How many square meters are cucumbers planted?
- 10. A vegetable plot covers an area of 1000 square meters, of which two fifths are tomatoes, and the remaining area is 5:1 eggplant and cucumber What are the areas of these three vegetables?
- 11. The area of a piece of land is 12 hectares. According to the plant spacing of 0.2 meters and row spacing of 0.5 meters, how many corn trees can be planted on this land at most The area of a piece of land is 12 hectares. Corn can be planted at 0.2 M plant spacing and 0.5 m row spacing. This land can grow corn at most Column arithmetic
- 12. What is the land area of our country?
- 13. The perimeter of a rectangular land is 100 meters. If the length increases by 13 and the width increases by 14, then the perimeter increases by 30 meters. What is the original area of this land?
- 14. There is a rectangle, which is three times as long as it is wide and covers an area of 243 square meters. How many meters is the length and width of this land
- 15. A rectangular piece of land, 16 meters longer than the width, and three times the width, how much is the area of this land? To use the equation solution simple, primary school grade 5 can understand, and by the way, how to solve, thank you
- 16. An agricultural technology station has to do field experiments on a rectangular land. It is known that the length of the rectangle is three times the width and the area is 1323m2. What is the length and width of the land?
- 17. For a parallelogram nursery, the bottom is 24 meters and the height is 25% of the bottom. If the average area of each seedling is 0.3 square meters, then
- 18. A trapezoidal wheat field is 350 meters in height, 480 meters in height and 600 meters in height. How many tons of wheat can be harvested if 6000 kg wheat is harvested per hectare?
- 19. The first angle of a triangle is three times the second angle, and the third angle is 20 degrees larger than the sum of the two angles. Find the degree of the three angles
- 20. The maximum angle of a triangle is 120 degrees, which is four times of the minimum angle. How many degrees are the three shapes and what triangle are they