Students A and B are driving at speeds of 60 meters per minute and 48 meters per minute respectively. They set off from school to the gymnasium at the same time. Six minutes later, A meets student C who is running towards him. After saying hello, he continues Go forward, B also meets C after 1 minute. Find the speed of C.
甲、乙两位同学的行车速度分别为每分钟60米和每分钟48米，他俩同时从学校出发到体育馆去，6分钟以后甲遇到迎面跑来的丙同学，打了招呼后又继续前走，1分钟后乙也遇到丙．求丙的速度．
<gadget id="calculator">60 - 48</gadget>
<output>12</output>

<gadget id="calculator">12 / 1</gadget>
<output>12</output>

<gadget id="calculator">6 * 12</gadget>
<output>72</output>

<gadget id="calculator">72 - 48</gadget>
<output>24</output>

<result>24</result>