Xiaohong reads a 560-page story book, 16 pages a day for the first 15 days, and plans to finish the rest in 8 days. How many pages do she read on average every day?
小红看一本560页的故事书，前15天每天看16页，剩下的准备8天看完，平均每天看多少页？
<gadget id="calculator">16 * 15</gadget>
<output>240</output>

<gadget id="calculator">560 - 240</gadget>
<output>320</output>

<gadget id="calculator">320 / 8</gadget>
<output>40</output>

<result>40</result>