Car A and car B drive from point A to point B at the same time. Car A returns immediately after arriving at point B and meets car B at a distance of 45 kilometers from point B. The speed ratio of cars A and B is 3:2, how many kilometers did car B travel when they met?
甲乙两车同时从A地开往B地，甲车到达B地后立即返回，在离B地45千米处与乙车相遇．甲乙两车的速度比是3：2，求相遇时乙车行了多少千米．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 / (1/3)</gadget>
<output>6</output>

<gadget id="calculator">45 * 6</gadget>
<output>270</output>

<gadget id="calculator">270 * (2/3)</gadget>
<output>180</output>

<result>180</result>