My father bought me a book of fairy tales. There are 90 short stories in total. I read a story every day. How many months will it take to finish this book?
爸爸给我买了一本童话故事，一共有90个小故事，我每天看一个故事，看完这本书大约需要几个月？
<gadget id="calculator">90 / 30</gadget>
<output>3</output>

<result>3</result>