Cars A and B are driving towards each other from two places 480 kilometers apart at the same time. Car A travels 45 kilometers per hour. Car A stops for 1 hour due to a car breakdown on the way. The two cars meet after 5 hours. How many kilometers does car B travel per hour?
甲、乙两车同时从相距480千米的两地相对而行，甲车每小时行45千米，途中因汽车故障甲车停了1小时，5小时后两车相遇．乙车每小时行多少千米？
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">45 * 4</gadget>
<output>180</output>

<gadget id="calculator">480 - 180</gadget>
<output>300</output>

<gadget id="calculator">300 / 5</gadget>
<output>60</output>

<result>60</result>