It takes 1 minute and 10 seconds for Li Xiaofeng to run a lap on the 400-meter runway. Calculated at this speed, how many seconds does it take Li Xiaofeng to run 60 meters?
李小锋在400米的跑道上跑一圈，用时为1分10秒，按照这种速度计算，李小锋跑60米所用的时间是多少秒
<gadget id="calculator">400 / 70</gadget>
<output>40/7 = around 5.714286</output>

<gadget id="calculator">60 / (40/7)</gadget>
<output>21/2 = around 10.5</output>

<result>21/2 = around 10.5</result>