A fairy tale book has 560 pages, and it took Xiaoli 4 weeks to read it. How many pages do you read on average per day?
一本童话书有560页，小丽用4个星期看完．平均每天大约看多少页？
<gadget id="calculator">7 * 4</gadget>
<output>28</output>

<gadget id="calculator">560 / 28</gadget>
<output>20</output>

<result>20</result>