Uncle Li drove a motorcycle from A to B. When he drove 10 kilometers beyond the midpoint, he was still 140 kilometers away from the end point, and it took him 5 hours to reach B. What is the speed of Uncle Li from A to B?
李叔叔驾驶摩托车从甲地开往乙地，当驾驶到超过中点10千米时，离终点还有140千米，到达乙地共用了5个小时．李叔叔从甲地到乙地的速度是多少？
<gadget id="calculator">10 + 140</gadget>
<output>150</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">150 * (2/5)</gadget>
<output>60</output>

<result>60</result>