A story book has 260 pages, and I read 85 pages with a smile. The rest will take 7 days to read. How many pages do you read on average per day?
一本故事书有260页，笑笑看了85页．剩下的要7天看完，平均每天看多少页？
<gadget id="calculator">260 - 85</gadget>
<output>175</output>

<gadget id="calculator">175 / 7</gadget>
<output>25</output>

<result>25</result>