In order to do a good job in the security work of the National Day, a certain ministry sent people to a certain place by car to perform a task, starting from 10:00 am to 12:00 am and traveling a total of 200km. At this speed, the destination can be reached at 3:00 p.m. How many kilometers have you traveled when you reach the destination?
为做好国庆安保工作，某部派人乘坐汽车到某地执行任务，上午10时出发到12时共行了200km．照这样的速度，下午3时可到达目的地，到达目的地时共行了多少千米？
<gadget id="calculator">200 / 2</gadget>
<output>100</output>

<gadget id="calculator">100 * 5</gadget>
<output>500</output>

<result>500</result>