Xiao Qiao runs 250 meters per minute, and reaches the destination after 40 minutes. Xiao Ding Ding runs the same distance for 50 minutes. What is the speed of Xiao Ding Ding?
小巧每分钟跑250米，经过40分钟到达目的地，同样的路程小丁丁跑了50分钟，小丁丁跑的速度是多少？
<gadget id="calculator">250 * 40</gadget>
<output>10_000</output>

<gadget id="calculator">10_000 / 50</gadget>
<output>200</output>

<result>200</result>