Cars A and B are traveling toward each other at the same time from two places 300 kilometers apart. After 2.5 hours, the distance between cars A and B is still 2.5% of the whole distance. The speed ratio of cars A and B is 5:4. Find how many cars A travels per hour? rice?
甲、乙两车从相距300千米的两地同时相向而行，2.5小时后还相距全程的2.5%，又甲、乙两车的速度比是5：4，求甲车每小时行多少千米？
<gadget id="calculator">2.5 / 100</gadget>
<output>0.025</output>

<gadget id="calculator">1 - 0.025</gadget>
<output>0.975</output>

<gadget id="calculator">0.975 / 2.5</gadget>
<output>0.39</output>

<gadget id="calculator">5 + 4</gadget>
<output>9</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">300 * 0.39 * (5/9)</gadget>
<output>65</output>

<result>65</result>