There are four fifths of apple orchards in Xingfu village, accounting for two fifths of the total area of orchards. How many hectares are there?
Area = 4 / 5 △ 2 / 5 = 2 ha
The apple orchard of Huaguo forest farm covers an area of 7 / 9 hectares, accounting for 1 / 3 of the total area of the orchard?
9/7÷3/1
How many thousand square kilometers is China's land area
Land area: about 9.6 million square kilometers