cylinder of wood with a length of 5 meters is sawed off by 2 meters and its volume is reduced by 10 cubic meters. What is the volume of the original cylinder in cubic meters?
一根长5米的圆柱体木料，锯掉2米后体积减少了10立方米，则原来圆柱体木料的体积是多少立方米．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<result>25</result>