In a story book, the number of pages that have been read is the number of pages that have not been read (5/8). If you read another 96 pages, then the number of pages you have not read and the number of pages you have read are exactly exchanged. How many pages in this book are there in total?
一本故事书，已看的页数是未看的(5/8)，如果再看96页，那么原来未看的与现在已看的页数正好交换，这本书一共多少页．
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 + (5/8)</gadget>
<output>13/8 = around 1.625</output>

<gadget id="calculator">1 / (13/8)</gadget>
<output>8/13 = around 0.615385</output>

<gadget id="calculator">1 - (8/13)</gadget>
<output>5/13 = around 0.384615</output>

<gadget id="calculator">(8/13) - (5/13)</gadget>
<output>3/13 = around 0.230769</output>

<gadget id="calculator">96 / (3/13)</gadget>
<output>416</output>

<result>416</result>