Fill a cube glass tank with a side length of 30cm with water, and then pour the water into a cuboid glass tank with a length of 60cm and a width of 25cm. How deep is the water at this time? (Glass thickness is ignored)
在棱长为30cm的正方体玻璃缸里装满水，然后将这些水倒入长60cm，宽25cm的长方体玻璃缸里，这时水深多少？(玻璃厚度忽略不计)
<gadget id="calculator">60 * 25</gadget>
<output>1_500</output>

<gadget id="calculator">30 / 1_500</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">30 * 30 * (1/50)</gadget>
<output>18</output>

<result>18</result>