The distance between A and B is 1000 kilometers. A car travels from A to B for 12 hours, and the distance to B is 136 kilometers. How many kilometers per hour does the car drive on average?
A、B两地相距1000千米，一辆汽车从A地开往B地，行了12小时，距B地还有136千米，这辆汽车平均每小时行驶多少千米？
<gadget id="calculator">1_000 - 136</gadget>
<output>864</output>

<gadget id="calculator">864 / 12</gadget>
<output>72</output>

<result>72</result>