There is a rectangular parallelepiped glass container with a length of 2dm, a width of 2dm and a height of 1dm measured from the inside. Now pour 5L of water into the container and submerge an apple in the water. At this time, the depth of the water in the container is measured to be 15cm. What is the volume of this apple?
有一个长方体玻璃容器，从里面量长为2dm、宽为2dm，高1dm，现在向容器中倒入5L水，再把一个苹果浸没在水中，这时量得容器内的水深是15cm．这个苹果的体积是多少？
<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>