Xiaomi bought 4 exercise books for 25 yuan, Xiaoli brought 100 yuan to buy the same exercise book, how many books can she buy?
小米买4本练习本用去25元，小丽带了100元买同样的练习本，能买多少本？
<gadget id="calculator">25 / 4</gadget>
<output>25/4 = around 6.25</output>

<gadget id="calculator">100 / (25/4)</gadget>
<output>16</output>

<result>16</result>