The car travels 30 kilometers per hour. The driver leaves at 10:00 am and arrives at 2:00 pm. How many kilometers has the driver traveled in total?
汽车每小时行驶30千米，司机上午10时出发到下午2时到达，司机一共行驶多少千米？
<gadget id="calculator">14 - 10</gadget>
<output>4</output>

<gadget id="calculator">30 * 4</gadget>
<output>120</output>

<result>120</result>