Teacher Wang printed the excellent "reading testimonials" of the three students in the class, 25 characters per line, 32 lines in total. Later, according to the unified requirements of the school, it was changed to 40 characters per line, so how many lines do these "reading testimonials" need to print?
王老师将全班3名同学的优秀"读书感言"进行打印，每行25个字，共32行．后来按学校统一要求改为每行40个字，那么这些"读书感言"需打印多少行？
<gadget id="calculator">25 * 32</gadget>
<output>800</output>

<gadget id="calculator">800 / 40</gadget>
<output>20</output>

<result>20</result>