On a map with a scale of 1:2000000, the distance between AB and AB is 6 cm. Cars A and B drive opposite each other from AB at the same time and meet each other in 2 hours. It is known that car B travels 25 kilometers per hour, how many kilometers per hour does car A travel?
在一幅比例尺是1：2000000的地图上，量得AB两地的距离是6厘米．甲乙两车同时从AB两地相对开出，2小时相遇，已知乙车每小时行25千米，甲车每小时行多少千米？
<gadget id="calculator">1 / 2_000_000</gadget>
<output>1/2_000_000 = around 0</output>

<gadget id="calculator">6 / (1/2_000_000) / 100_000 / 2</gadget>
<output>60</output>

<gadget id="calculator">60 - 25</gadget>
<output>35</output>

<result>35</result>