Liu Lijie borrowed a book and read 75 pages in 3 days. According to this calculation, she will have to read it for 5 days before finishing the book. How many pages does the book have?
刘丽婕借了一本书，3天看了75页，照这样计算，她再看5天才能看完这本书，这本书一共有多少页？
<gadget id="calculator">75 / 3</gadget>
<output>25</output>

<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">25 * 8</gadget>
<output>200</output>

<result>200</result>