Two trains, A and B, depart from A and B oppositely at the same time. A travels 60 kilometers per hour, and B's speed is 1.5 times that of A. After the two trains meet, A continues to travel for 4.5 hours to reach B. Find A , B the distance between the two places.
甲乙两列火车同时从A、B两地相对开出，甲每小时行60千米，乙的速度是甲的速度的1.5倍，两车相遇后，甲继续行4.5小时到达B地，求A、B两地的路程．
<gadget id="calculator">60 * 1.5</gadget>
<output>90</output>

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

<gadget id="calculator">60 * 4.5</gadget>
<output>270</output>

<gadget id="calculator">270 / 90</gadget>
<output>3</output>

<gadget id="calculator">150 * 3</gadget>
<output>450</output>

<result>450</result>