Two people, A and B, run a race with a time limit of 10 seconds, whoever runs the longest distance wins. A runs 1 meter in the first second, and runs 0.2 meters more in each second than in the previous second. But B ran 1.8 meters per second from beginning to end. How many meters did the winner run in total?
甲、乙两人赛跑，限定时间为10秒，谁跑的距离长获胜．甲第1秒跑1米，以后每秒都比前1秒多跑0.2米．而乙却自始至终每秒跑1.8米，获胜者共跑了多少米？
<gadget id="calculator">39 / 2</gadget>
<output>39/2 = around 19.5</output>

<result>39/2 = around 19.5</result>