A cuboid oil barrel has an inner bottom surface of 45 square decimeters and a height of 6 decimeters. If 1 liter of oil weighs 0.7 kg, how many kg of oil can this barrel hold?
一个长方体的油桶，内底面面积是45平方分米，高6分米．如果1升油重0.7千克，那么这个桶可以装多少千克油？
<gadget id="calculator">45 * 6</gadget>
<output>270</output>

<gadget id="calculator">270 * 0.7</gadget>
<output>189</output>

<result>189</result>