The distance between the two places is 300 kilometers. A passenger car and a freight car are traveling towards each other from the two places at the same time. They meet after 2.5 hours. It is known that the speed ratio of the passenger car and the freight car is 3:2. Find the speed of the passenger car.
两地相距300千米，一列客车与一列货车从两地同时相向而行，2.5小时后相遇，已知客车与货车的速度比是3：2，求客车的速度．
<gadget id="calculator">300 / 2.5</gadget>
<output>120</output>

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">120 * (3/5)</gadget>
<output>72</output>

<result>72</result>