The distance between A and B is 280 kilometers. Cars A and B drive from the two places at the same time and meet each other in 3.5 hours. The speed ratio of car A and car B is 2:3. How many kilometers does car A travel per hour?
A、B两地相距280千米，甲、乙两车同时从两地相对开出，3.5小时相遇，甲车与乙车的速度比是2：3，甲车每小时行多少千米？
<gadget id="calculator">280 / 3.5</gadget>
<output>80</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

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

<gadget id="calculator">80 * (2/5)</gadget>
<output>32</output>

<result>32</result>