A cuboid glass tank is 40 cm long and 25 cm wide when measured from the inside, and the water depth in the tank is 12 cm. After a stone is immersed in water, the water level rises to 17 cm, what is the volume of the stone?
一个长方体玻璃缸，从里面量长40厘米，宽25厘米，缸内水深12厘米．把一块石头浸入水中后，水面升到17厘米，求石块的体积？
<gadget id="calculator">17 - 12</gadget>
<output>5</output>

<gadget id="calculator">40 * 25 * 5</gadget>
<output>5_000</output>

<result>5_000</result>