Each photo album has 12 pages, and each page can hold 4 photos. How many photos can be placed in 5 books?
每本相册有12页，每页可以放4张照片．5本一共可以放多少张照片？
<gadget id="calculator">12 * 4 * 5</gadget>
<output>240</output>

<result>240</result>