In an action to exterminate pine caterpillars, an aircraft flew 50,000 meters per hour, and the width of pesticide spraying was 120 meters. How many square kilometers of forest land can be sprayed with pesticides by flying this plane for 10 hours?
在一次扑灭松毛虫的行动中，一架飞机每小时飞行50000米，喷洒农药的宽度是120米．这架飞机飞行10小时，能给多少平方千米的林地喷洒农药？
<gadget id="calculator">50_000 / 1_000</gadget>
<output>50</output>

<gadget id="calculator">120 / 1_000</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">50 * (3/25) * 10</gadget>
<output>60</output>

<result>60</result>