In a rectangular container, filled with 12 cm deep water, due to sudden changes in the weather, a layer of ice formed on it, the thickness of the ice is 3.6 cm. It is known that the freezing volume of water will increase (1/11), how many centimeters is the water depth under the ice layer at this time?
在一个长方形容器里，装有12厘米深的水，由于天气突变，上面结了一层冰，冰的厚度为3.6厘米．已知水结冰体积要增加(1/11)，这时冰层下的水深多少厘米？
<gadget id="calculator">1 / 11</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">1 + (1/11)</gadget>
<output>12/11 = around 1.090909</output>

<gadget id="calculator">3.6 / (12/11)</gadget>
<output>3.3</output>

<gadget id="calculator">12 - 3.3</gadget>
<output>8.7</output>

<result>8.7</result>