A cuboid glass container, measured from the inside, is 2dm in length and width, and 18cm in height. Pour 5L of water into the container, and then submerge a pear in the water. At this time, the water depth in the container is measured to be 15cm. What is the volume of this Sydney?
一个长方体玻璃容器，从里面量长、宽均为2dm，高18cm，向容器中倒入5L水，再把一个雪梨浸没在水中，这时量得容器内的水深是15cm．这个雪梨的体积是多少？
<gadget id="calculator">15 / 10</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">2 * 2 * (3/2)</gadget>
<output>6</output>

<gadget id="calculator">6 - 5</gadget>
<output>1</output>

<result>1</result>