The volume and base area of the cone and cylinder are equal, the height of the cone is 15dm, what is the height of the cylinder
圆锥和圆柱的体积和底面积相等，圆锥的高是的15dm，圆柱的高是多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">15 * (1/3)</gadget>
<output>5</output>

<result>5</result>