A cube-shaped fuel tank has a bottom circumference of 40 decimeters. If the fuel weighs 0.75 kg per liter, how many kilograms of fuel can the tank hold?
一个正方体的形状的油箱，底面周长是40分米，如果每升油重0.75千克，这个油箱能装油多少千克．
<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<gadget id="calculator">10 * 10 * 10</gadget>
<output>1_000</output>

<gadget id="calculator">0.75 * 1_000</gadget>
<output>750</output>

<result>750</result>