Zhang Hua reads a fairy tale book. On the first day, he reads 1/4 of the whole book, on the second day he reads 37.5% of the whole book, and on the third day he reads from page 71. How many pages does this book have?
张华看一本童话书，第一天看了全书的(1/4)，第二天看了全书的37.5%，第三天从71页看起，这本书共多少页？
<gadget id="calculator">71 - 1</gadget>
<output>70</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">37.5 / 100</gadget>
<output>0.375</output>

<gadget id="calculator">(1/4) + 0.375</gadget>
<output>0.625</output>

<gadget id="calculator">70 / 0.625</gadget>
<output>112</output>

<result>112</result>