The distance between A and B is 900 km. It takes 10 hours for A car to travel from A to B, and 15 hours for B to travel from B to A. Two cars drive from two places at the same time, how many kilometers is car A away from place B when they meet?
A、B两地相距900千米，甲车由A地到B地需要10小时，乙车由B地到A地需要15小时．两车同时从两地开出，相遇时甲车距B地还有多少千米？
<gadget id="calculator">900 / 10</gadget>
<output>90</output>

<gadget id="calculator">900 / 15</gadget>
<output>60</output>

<gadget id="calculator">90 + 60</gadget>
<output>150</output>

<gadget id="calculator">900 / 150</gadget>
<output>6</output>

<gadget id="calculator">90 * 6</gadget>
<output>540</output>

<gadget id="calculator">900 - 540</gadget>
<output>360</output>

<result>360</result>