Zhang Hua finished reading a storybook in two days. He read 60% of the book on the first day, and read 24 pages less on the second day than on the first day. How many pages does the storybook have?
张华两天看完一本故事书，第一天看了全书60%，第二天比第一天少看24页，这本故事书一共有多少页？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/5) - (2/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">24 / (1/5)</gadget>
<output>120</output>

<result>120</result>