9,000 apple trees are planted on a piece of land with a length of 300 meters and a width of 200 meters. How many apple trees are planted per hectare?
在一块长300米、宽200米的地上种了9000棵苹果树，平均每公顷种苹果树多少棵？
<gadget id="calculator">200 / 10_000</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">300 * (1/50)</gadget>
<output>6</output>

<gadget id="calculator">9_000 / 6</gadget>
<output>1_500</output>

<result>1_500</result>