A story book has 120 pages. If you read the whole book (1/4) on the first day, what page should you read on the second day?
一本故事书有120页，第一天读了全书的(1/4)，第二天应从第多少页读起．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">120 * (1/4)</gadget>
<output>30</output>

<gadget id="calculator">30 + 1</gadget>
<output>31</output>

<result>31</result>