A cuboid container is 13 cm long and 10 cm wide. 13 goldfish are placed in it. The water level rises by 1 cm. What is the average volume of each of these small goldfish?
一个长方体容器，长13厘米，宽10厘米，放入13条金鱼，水面上升了1厘米，这些小金鱼平均每条的体积是多少？
<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>

<gadget id="calculator">13 * 10 * (1/13)</gadget>
<output>10</output>

<result>10</result>