There is a science and technology book, Ding Ding read half of the whole book on the first day, and half of the remaining part on the second day, and there are 46 pages left in the end. How many pages are there in this book? (Hint: You can use a tree diagram to help)
有一本科技书，小丁丁第一天读了整本书的一半，第二天读了剩余部分的一半，最后还剩46页，这本书一共有多少页？(提示：可以用树状算图帮助)
<gadget id="calculator">46 * 2 * 2</gadget>
<output>184</output>

<result>184</result>