Xiaojun spent 2 minutes, 7 minutes, and 5 minutes in the three races (650 meters, 1250 meters, and 900 meters) respectively. What is his average speed in the race?
小军在三个赛程(650米、1250米、900米)所用的时间分别为2分钟、7分钟、5分钟，他在比赛中的平均速度是多少？
<gadget id="calculator">650 + 1_250 + 900</gadget>
<output>2_800</output>

<gadget id="calculator">2 + 5 + 7</gadget>
<output>14</output>

<gadget id="calculator">2_800 / 14</gadget>
<output>200</output>

<result>200</result>