Mom's age is 5 times of Xiaohong's, father's age is 5.5 times of Xiaohong's, father is 3 years older than mother's, how old is Xiaohong this year?
妈妈的年龄是小红的5倍，爸爸的年龄是小红的5.5倍，爸爸比妈妈大3岁，小红今年多少岁？
<gadget id="calculator">5.5 - 5</gadget>
<output>0.5</output>

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

<result>6</result>