The flight distance from Guangzhou to Beijing is 936 kilometers. A passenger plane takes off from Guangzhou Airport at 11:30 am and arrives at Beijing Airport at 2:30 pm. How many kilometers per hour does this airliner fly on average?
广州到北京的航程是936千米．一架客机上午11：30从广州机场起飞，下午2：30到达北京机场．这架客机平均每小时飞行多少千米？
<gadget id="calculator">936 / 3</gadget>
<output>312</output>

<result>312</result>