A book has 192 pages in total. Xiao Ming reads 32 pages on the first day, and the rest 40 pages a day. How many days will it take to finish it?
一本书共192页，小明第一天看了32页，剩下的每天看40页，还需要几天可以看完？
<gadget id="calculator">192 - 32</gadget>
<output>160</output>

<gadget id="calculator">160 / 40</gadget>
<output>4</output>

<result>4</result>