The volume of a cuboid water tank is 225 liters. The bottom of the water tank is a square with a side length of 50 cm. What is the height of the water tank in cm?
一个长方体水箱的容积是225升，这个水箱的底面是一个边长为50厘米的正方形，水箱的高是多少厘米．
<gadget id="calculator">1_000 / 50 / 50</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">225 * (2/5)</gadget>
<output>90</output>

<result>90</result>