The distance between the two places is 270 kilometers. Cars A and B drive towards each other at the same time and meet each other in 1.5 hours. The speed ratio of cars A and B is 4:5, how many kilometers does car A travel per hour?
两地相距270千米，甲、乙两辆汽车同时从两地相向开出，1.5小时相遇．甲、乙两车的速度比是4：5，甲车每小时行多少千米？
<gadget id="calculator">270 / 1.5</gadget>
<output>180</output>

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

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">180 * (4/9)</gadget>
<output>80</output>

<result>80</result>