A car drives for 3 hours in the morning and 4 hours in the afternoon at the same speed. If you drove 315 kilometers in the morning, how many kilometers did you drive in the afternoon?
一辆汽车上午行驶3小时，下午用同样的速度行驶4小时．如果上午行驶了315千米，下午行驶了多少千米？
<gadget id="calculator">315 / 3</gadget>
<output>105</output>

<gadget id="calculator">105 * 4</gadget>
<output>420</output>

<result>420</result>