Mom is a typist in the unit, and she types 340 words per minute. Mom starts typing a document at 9:31 and finishes typing it at 9:40. How many words are there in this document?
妈妈是单位的打字员，每分钟打字340个，一份文件妈妈从9：31开始，9：40全部打完，这份文件有多少字？
<gadget id="calculator">340 * 9</gadget>
<output>3_060</output>

<result>3_060</result>