Mom: "I am 5 times your age." Congcong: "Dad is 3 years older than you, and his age is 5.5 times mine." How old is Congcong?
妈妈："我的年龄是你的5倍．"聪聪："爸爸比你大3岁，他的年龄是我的5.5倍．"聪聪今年多少岁？
<gadget id="calculator">5.5 - 5</gadget>
<output>0.5</output>

<gadget id="calculator">3 / 0.5</gadget>
<output>6</output>

<result>6</result>