Xiao Liang reads a literary book for 3 days, and there are 24 pages left. After that, he reads 6 pages every day, how many days will he have to read.
小亮看一本文艺书，看了3天，还有24页，以后每天看6页，还要看多少天．
<gadget id="calculator">24 / 6</gadget>
<output>4</output>

<result>4</result>