A car needs 0.1 liter of fuel per kilometer. Its fuel tank is a cuboid with a length of 50 cm, a width of 40 cm, and a height of 30 cm. How many kilometers can it travel by filling up its fuel tank?
一种汽车每千米需用油0.1升，它的油箱是长50厘米，宽40厘米，高30厘米的长方体，将它的油箱加满油可行多少千米？
<gadget id="calculator">1 * 1_000</gadget>
<output>1_000</output>

<gadget id="calculator">30 / 1_000 / 0.1</gadget>
<output>0.3</output>

<gadget id="calculator">50 * 40 * 0.3</gadget>
<output>600</output>

<result>600</result>