It takes a car 15 hours to drive from place A to place B, and then back to place A. The time spent going there is 1.5 times that of returning, and the time spent going there is 12 kilometers per hour slower than the time when returning. How many kilometers is the distance between places A and B? rice.
一辆汽车从甲地开到乙地，又返回到甲地，一共用了15小时，去时所用时间是返回的1.5倍，去比回来时每小时慢12千米，甲乙两地相距多少千米．
<gadget id="calculator">1 + 1.5</gadget>
<output>2.5</output>

<gadget id="calculator">15 / 2.5</gadget>
<output>6</output>

<gadget id="calculator">6 * 12</gadget>
<output>72</output>

<gadget id="calculator">6 * 1.5</gadget>
<output>9</output>

<gadget id="calculator">9 - 6</gadget>
<output>3</output>

<gadget id="calculator">72 / 3</gadget>
<output>24</output>

<gadget id="calculator">24 * 9</gadget>
<output>216</output>

<result>216</result>