A cylindrical oil drum has a volume of 24 cubic decimeters and a bottom area of 6 square decimeters, which contains (3/4) barrel of water. How many decimeters is the water surface high?
一个圆柱形油桶容积是24立方分米，底面积6平方分米，装(3/4)桶水，水面高多少分米？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) / 6</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">24 * (1/8)</gadget>
<output>3</output>

<result>3</result>