Li Qiang walks 50 meters per minute. At this speed, how many kilometers does he walk in an hour?
李强同学每分钟走50米，照这样速度，他1小时走多少千米．
<gadget id="calculator">60 / 1_000</gadget>
<output>3/50 = around 0.06</output>

<gadget id="calculator">50 * 1 * (3/50)</gadget>
<output>3</output>

<result>3</result>