It takes 10 hours for a passenger car to go from city A to city B, and 15 hours for a truck to go from city B to city A. The two cars leave from the two cities at the same time, and the bus is still 360 kilometers away from city B when they meet. How many miles is the distance between A and B?
客车从甲城到乙城要10小时，货车从乙城到甲城要15小时，两车同时从两城相对开出，相遇时客车距乙城还有360千米．甲、乙两城相距多少千米？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(1/10) + (1/15)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / (1/6)</gadget>
<output>6</output>

<gadget id="calculator">6 * (1/10)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">360 / (2/5)</gadget>
<output>900</output>

<result>900</result>