conical container is 30cm high and has a bottom area of 94.2cm**2. If the water inside is poured into a cylindrical volume with a bottom area of 31.4cm**2, what is the height of the water surface?
一个圆锥形容器，高30cm，底面积是94.2cm**2，把里面的水倒入一个底面积为31.4cm**2的圆柱形容积中，水面高多少？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 94.2 * 30</gadget>
<output>942</output>

<gadget id="calculator">942 / 31.4</gadget>
<output>30</output>

<result>30</result>