A rectangular parallelepiped glass container has a base length of 20 cm, a width of 15 cm, and a height of 12 cm measured from the inside. If a bottle of 2250 ml of water is poured into the container, what is the depth of the water in cm?
一种长方体玻璃容器，从里面量得底长20厘米，宽15厘米，高是12厘米，如果将一瓶2250毫升的水倒入容器内，水深是多少厘米？
<gadget id="calculator">20 * 15</gadget>
<output>300</output>

<gadget id="calculator">2_250 / 300</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>