Two cars A and B start from two places 220 meters apart at the same time, drive towards each other, and meet each other after 2.5 hours. It is known that car A travels 45 kilometers per hour, how many kilometers per hour does car B travel?
甲乙两辆汽车分别从相距220米的两地同时出发，相向而行，经过2.5小时相遇．已知甲车每小时行45千米，乙车每小时行多少千米？
<gadget id="calculator">220 / 2.5</gadget>
<output>88</output>

<gadget id="calculator">88 - 45</gadget>
<output>43</output>

<result>43</result>