Xiao Wang reads a book for 3 days, and there are 133 pages left. If you read at this speed for 4 days, only (2/13) of the whole book is left, how many pages does this book have in total?
小王看一本书，看了3天，剩下133页．如果用这样的速度看4天，就剩下全书的(2/13)，则这本书一共有多少页．
<gadget id="calculator">2 / 13</gadget>
<output>2/13 = around 0.153846</output>

<gadget id="calculator">1 - (2/13)</gadget>
<output>11/13 = around 0.846154</output>

<gadget id="calculator">(11/13) / 4</gadget>
<output>11/52 = around 0.211538</output>

<gadget id="calculator">(11/52) * 3</gadget>
<output>33/52 = around 0.634615</output>

<gadget id="calculator">1 - (33/52)</gadget>
<output>19/52 = around 0.365385</output>

<gadget id="calculator">133 / (19/52)</gadget>
<output>364</output>

<result>364</result>