Cars A and B leave opposite places at the same time from places A and B. After 4 hours, the two cars meet. It is known that A travels 60 kilometers per hour, and B takes 9 hours to complete the journey. How many kilometers are there between A and B?
甲、乙两车同时从A、B两地相对开出，经过4小时，两车相遇．已知甲每小时行60千米，乙车行完全程要9小时，A、B两地相距多少千米？
<gadget id="calculator">9 - 4</gadget>
<output>5</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">60 * (4/5)</gadget>
<output>48</output>

<gadget id="calculator">48 + 60</gadget>
<output>108</output>

<gadget id="calculator">108 * 4</gadget>
<output>432</output>

<result>432</result>