It is known that the volume of a cylinder is 60% less than that of a cone, and the ratio of the base radii of the cylinder to the cone is 2:3, so how much less is the height of the cylinder than the height of the cone.
已知一个圆柱的体积比一个圆锥的体积少60%，圆柱与圆锥的底面半径的比是2：3，则圆柱的高比圆锥的高少多少．
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<result>7/10 = around 0.7</result>