story book has 200 pages. Xiaoli read 20% of the book on the first day, and the remaining 30% on the second day. How many pages did she read on the second day?
一本故事书200页，小丽第一天读了这本书的20%，第二天读了余下的30%，第二天读了多少页．
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">200 * (4/5) * (3/10)</gadget>
<output>48</output>

<result>48</result>