In a book, the number of pages read is 60 more than the rest, which is exactly (1/4) of this book. How many pages does this book have.
一本书，看了的页数比剩下的多60页，正好是这本书的(1/4)．这本书有多少页．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">60 / (1/4)</gadget>
<output>240</output>

<result>240</result>