A truck and a passenger car drive toward each other at the same time from places A and B, which are 655 kilometers apart. After 4.5 hours, the distance between the two cars is 25 kilometers. It is known that the truck travels 60 kilometers per hour, how many kilometers per hour does the passenger car travel?
货车和客车分别从相距655千米的甲、乙两地同时相向而行，经过4.5小时，两车相距25千米．已知货车每小时行60千米，客车每小时行多少千米？
<gadget id="calculator">655 - 25</gadget>
<output>630</output>

<gadget id="calculator">630 / 4.5</gadget>
<output>140</output>

<gadget id="calculator">140 - 60</gadget>
<output>80</output>

<result>80</result>