The distance between A and B is 1440 kilometers. Two cars drive from the two places at the same time. After 9 hours, the two cars meet. One of the cars travels 79 kilometers per hour, how many kilometers per hour does the other car travel?
甲乙两地相距1440千米，两辆汽车同时从两地相对开出，经过9小时两车相遇．其中一辆汽车每小时行79千米，另一辆汽车每小时行多少千米？
<gadget id="calculator">1_440 / 9</gadget>
<output>160</output>

<gadget id="calculator">160 - 79</gadget>
<output>81</output>

<result>81</result>