Xiao Ming has 5 pairs of socks, the colors are white, black, red, blue, and gray. One day, he found that 3 of the socks were lost. The situation may be: 2 of the 3 lost socks have the same color, so he still has 3 pairs of socks; it may also be that the 3 lost socks have two colors. No, so he only has 2 pairs of socks left. Then the possibility of the latter is how many times that of the former.
小明有5双袜子，颜色分别是白色、黑色、红色、蓝色、灰色．有一天，他发现掉了其中的3只袜子，情况可能是：掉了的3只袜子其中有2只颜色一样，于是他还有3双袜子；也有可能是掉了的3只袜子颜色两辆不同，于是他只剩下2双袜子了．那么后者的可能性是前者的多少倍．
<gadget id="calculator">5 * 4 * 2</gadget>
<output>40</output>

<gadget id="calculator">80 / 40</gadget>
<output>2</output>

<result>2</result>