Xiaoyun and Xiaogang had a rope skipping competition. Xiaoyun jumped 492 times in 3 minutes, and Xiaogang jumped 447 times in 3 minutes. Who jumped more per minute? How many times?
小云和小刚比赛跳绳，小云3分钟跳了492下，小刚3分钟跳了447下，谁每分钟跳得多？多几下？
<gadget id="calculator">492 / 3</gadget>
<output>164</output>

<gadget id="calculator">447 / 3</gadget>
<output>149</output>

<gadget id="calculator">164 - 149</gadget>
<output>15</output>

<result>15</result>