A story book, read 24 pages a day, can be finished in 25 days. If you read 6 more pages a day, how many days can you finish reading?
一本故事书，每天读24页，25天可读完．如果每天多读6页，几天可读完？
<gadget id="calculator">24 + 6</gadget>
<output>30</output>

<gadget id="calculator">25 / 30</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">24 * (5/6)</gadget>
<output>20</output>

<result>20</result>