Mother's age is four times that of Xiaohong's. This year's mother is 27 years older than Xiaohong. Ask how old her mother is this year.
妈妈的年龄是小红年龄的4倍，今年妈妈比小红大27岁，问今年妈妈是多少岁．
<gadget id="calculator">27 / 3</gadget>
<output>9</output>

<gadget id="calculator">9 * 4</gadget>
<output>36</output>

<result>36</result>