Mother's age is 4 years more than 3 times of Xiaoling's. Mom is 37 years old, how old is Xiaoling?
妈妈的年龄比小玲的3倍多4岁．妈妈今年37岁，小玲今年多少岁？
<gadget id="calculator">37 - 4</gadget>
<output>33</output>

<gadget id="calculator">33 / 3</gadget>
<output>11</output>

<result>11</result>