A car uses 0.078 liters of oil to drive 1 km, how many liters of oil does it use to drive 10,000 km?
一辆汽车行驶1千米用油0.078升，它行驶10000千米，用油多少升？
<gadget id="calculator">0.078 * 10_000</gadget>
<output>780</output>

<result>780</result>