A car drives 300 kilometers from city A to city B in 4 hours, how many kilometers per hour on average?
一辆汽车从甲城开往乙城，4小时行驶了300千米，平均每小时行驶多少千米？
<gadget id="calculator">300 / 4</gadget>
<output>75</output>

<result>75</result>