A cuboid glass container, measured from the inside, is 2 decimeters in length and width. Pour 5 liters of water into the container, and then put an apple into the water. At this time, the water depth in the container is measured to be 13 cm. What is the volume of the apple? ?
一个长方体玻璃容器，从里面量长、宽均为2分米，向容器中倒入5升水，再把一个苹果放入水中，这时量得容器内的水深13厘米，这个苹果的体积是多少？
<gadget id="calculator">13 / 10</gadget>
<output>13/10 = around 1.3</output>

<gadget id="calculator">2 * 2 * (13/10)</gadget>
<output>26/5 = around 5.2</output>

<gadget id="calculator">(26/5) - 5</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>