Doudou reads 12 pages of a fairy tale book every day, and can finish it in 7 days. If Doudou wants to finish reading within 6 days, how many pages should he read on average every day?
一本童话书，豆豆每天看12页，7天可以看完．如果豆豆想6天内看完，平均每天要看多少页？
<gadget id="calculator">12 / 6</gadget>
<output>2</output>

<gadget id="calculator">7 * 2</gadget>
<output>14</output>

<result>14</result>