Li Ming reads a book. He originally planned to read 30 pages a day, and he can finish it in 12 days. The actual number of pages he read per day is 1 (1/5) times the original plan. How many days can he read this book? (Solve with ratio)
李明读一本书，原计划每天读30页，12天可以读完，实际每天读的页数是原计划的1(1/5)倍，这本书可以读多少天？(用比例解)
<gadget id="calculator">30 * 12</gadget>
<output>360</output>

<gadget id="calculator">360 / 36</gadget>
<output>10</output>

<result>10</result>