7 cars save 126.28 liters of gasoline in 4 days, how many liters of gasoline are saved per car per day on average?
7辆汽车4天节约汽油126.28升，平均每辆汽车每天节约多少升汽油？
<gadget id="calculator">126.28 / 7 / 4</gadget>
<output>4.51</output>

<result>4.51</result>