The father is 27 years old this year, exactly 9 times the age of the daughter, how many times the age of the father will be the daughter after 3 years.
爸爸今年27岁，恰好是女儿年龄的9倍，3年后爸爸年龄是女儿的多少倍．
<gadget id="calculator">27 + 3</gadget>
<output>30</output>

<gadget id="calculator">27 / 9</gadget>
<output>3</output>

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

<gadget id="calculator">30 / 6</gadget>
<output>5</output>

<result>5</result>