A cube fuel tank, the side length measured from the inside is 4 decimeters, if the weight of fuel per liter is 0.75 kg, how many kilograms of fuel can this fuel tank hold at most?
一个正方体油箱，从里面量棱长是4分米，如果每升油重0.75千克，这个油箱最多可装油多少千克？
<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<gadget id="calculator">0.75 * 64</gadget>
<output>48</output>

<result>48</result>