Cars A and B travel from one point to the east and west cities. After 2.5 hours, car A arrives in the west city, and car B is 16 kilometers away from the east city. The speed ratio of cars A and B is 5:4. It is known that the east and west cities The distance is 196 kilometers, how many kilometers does car A travel per hour?
甲、乙两车从一点向东西两城行驶，2.5小时后，甲车到达西城，乙车距东城还有16千米，甲、乙两车的速度比是5：4，已知东西两城相距196千米，甲车每小时行驶多少千米？
<gadget id="calculator">196 - 16</gadget>
<output>180</output>

<gadget id="calculator">180 / 2</gadget>
<output>90</output>

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

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

<gadget id="calculator">90 * (5/9)</gadget>
<output>50</output>

<result>50</result>