It takes 2.4 hours for Xiao Wang to type an article with a computer. What is the work efficiency of Xiao Wang for typing this article with a computer?
小王用电脑打完一篇文章需要2.4小时，小王用电脑打这篇文章的工作效率是多少．
<gadget id="calculator">1 / 2.4</gadget>
<output>0.416667</output>

<result>0.416667</result>