The distance between A and B is 340 kilometers. Two cars drive from the two places at the same time. After 2.5 hours, they are still 15 kilometers apart. One car travels 63 kilometers per hour. How many kilometers does the other car travel per hour? ?
甲乙两地相距340千米，两辆汽车同时从两地相对开出，经过2.5小时以后还相相距15千米，一辆汽车每小时行63千米，另一辆汽车每小时行多少千米？
<gadget id="calculator">340 - 15</gadget>
<output>325</output>

<gadget id="calculator">325 / 2.5</gadget>
<output>130</output>

<gadget id="calculator">130 - 63</gadget>
<output>67</output>

<result>67</result>