The sprinkling width of a sprinkler is 5 meters. If it travels 30 kilometers per hour, how many hectares does it sprinkle per hour?
一种洒水车的洒水宽度是5米，如果它每小时行驶30千米，那么它每小时的洒水面积是多少公顷？
<gadget id="calculator">1_000 / 10_000</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">5 * 30 * (1/10)</gadget>
<output>15</output>

<result>15</result>