A cone and a cylinder with the same base and the same height have a volume difference of 60 cubic centimeters. What is the volume of the cone in cubic centimeters?
等底等高的一个圆锥体和一个圆柱体，体积相差60立方厘米，这个圆锥体的体积是多少立方厘米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">60 / (2/3)</gadget>
<output>90</output>

<gadget id="calculator">90 * (1/3)</gadget>
<output>30</output>

<result>30</result>