Mingming read a story book, read it for 7 days, and there are 35 pages left. After reading 7 pages a day, how many days will it take to finish reading?
明明看一本故事书，看了7天，还剩35页．以后每天看7页，还要看多少天才能看完？
<gadget id="calculator">35 / 7</gadget>
<output>5</output>

<result>5</result>