Naughty finished reading a story book in three days, read (1/3) of the book on the first day, read the remaining 40% on the second day, and finished reading it on the third day. If you read 10 more pages on the third day than on the first day, how many pages are there in the book?
淘气用三天读完一本故事书，第一天读了这本书的(1/3)，第二天读了余下的40%，第三天读完．如果第三天比第一天多读10页，那么这本书共有多少页？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/3) * (2/5)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">(4/15) + (1/3)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5) - (1/3)</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">10 / (1/15)</gadget>
<output>150</output>

<result>150</result>