Xiao Dingding and Xiaopang are walking opposite each other from the circular runway at the same time. Xiao Dingding’s speed is 2 m/s, and Xiao Pang’s speed is 3 m/s. After 1 minute and 50 seconds, the distance between the two is still 50 meters. How long is the circular runway? rice?
小丁丁和小胖同时从环形跑道相背而行，小丁丁的速度是2米/秒，小胖的速度是3米/秒，1分50秒后两人还相距50米，环形跑道长多少米？
<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">5 * 110</gadget>
<output>550</output>

<gadget id="calculator">550 + 50</gadget>
<output>600</output>

<result>600</result>