Fang Fang borrowed a 216-page story book for 4 days. If you read 3 hours a day, how many pages do you read every hour?
芳芳借来一本216页的故事书，借阅时间是4天．如果每天看3小时，每小时要看多少页？
<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<gadget id="calculator">216 / 12</gadget>
<output>18</output>

<result>18</result>