A story book has 168 pages, Xiao Ming plans to read it in 3 weeks. How many pages does he read on average per day?
一本故事书有168页，小明准备3个星期把它看完．他平均每天看多少页？
<gadget id="calculator">168 / 3 / 7</gadget>
<output>8</output>

<result>8</result>