The distance between the two cities is 1320 kilometers. Cars A and B drive from opposite directions at the same time and meet each other 6 hours later. It is known that the speed ratio of cars A and B is 7:4, what is the speed of car A?
两城相距1320千米，甲乙两辆汽车同时从两地相向开出，6小时后相遇．已知甲乙两车的速度比是7：4，甲车的速度是多少？
<gadget id="calculator">1_320 / 6</gadget>
<output>220</output>

<gadget id="calculator">7 + 4</gadget>
<output>11</output>

<gadget id="calculator">7 / 11</gadget>
<output>7/11 = around 0.636364</output>

<gadget id="calculator">220 * (7/11)</gadget>
<output>140</output>

<result>140</result>