A tractor pulls a seeder at a speed of 5 kilometers per hour for sowing. The seeding width of the seeder is 2.4 meters, and the outer diameter of the rear wheel of the tractor is 1.5 meters. How many hectares does this tractor sow per hour?
一台拖拉机以时速5千米的速度牵引着播种机播种，播种机的播种宽度是2.4米，拖拉机的后轮外直径是1.5米．这台拖拉机每小时播种面积是多少公顷？
<gadget id="calculator">2.4 / 10_000</gadget>
<output>0.00024</output>

<gadget id="calculator">5 * 1_000 * 0.00024</gadget>
<output>1.2</output>

<result>1.2</result>