Xiao Ming and Xiao Gang practice running, Xiao Ming runs 6 meters per second, Xiao Gang runs 5.5 meters per second, Xiao Gang is 5 meters ahead of Xiao Ming, they both run in the same direction at the same time, how many seconds will it take Xiao Ming to catch up with Xiao Gang?
小明和小刚练习跑步，小明每秒跑6米，小刚每秒跑5.5米，小刚在小明前面5米，他俩同时向同一方向跑，小明要用多少秒可以追上小刚？
<gadget id="calculator">6 - 5.5</gadget>
<output>0.5</output>

<gadget id="calculator">5 / 0.5</gadget>
<output>10</output>

<result>10</result>