Three tractors plough 90 hectares in three days. According to this calculation, how many hectares will five tractors plough in six days?
1 set 1 day lower 90 △ 3 △ 3 = 10 ha
So 5 tractors 6 days cultivated land 10 × 5 × 6 = 300 hectares
How many hectares of arable land can be cultivated in 8 hours according to this calculation
Arable land per hour
5 △ 1.25 = 4 ha
Eight hours of arable land
4 × 8 = 32 ha
A triangle wheat field is 350 meters at the bottom and 240 meters high. If the wheat yield is 6.8 tons per hectare, how many tons of wheat will be harvested in this field
Reprint of Chinese,
The area is:
350 × 240 △ 2 = 42000 (M2) = 4.2 (HA)
Wheat harvest:
4.2 × 6.8 = 28.56 (ton)