This year's father's age is four times Xiaoliang's age, and his father is 30 years older than Xiaoliang. How old is his father this year?
今年爸爸的年龄是小亮年龄的4倍，爸爸比小亮大30岁，爸爸今年几岁？
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">30 / 3</gadget>
<output>10</output>

<gadget id="calculator">10 * 4</gadget>
<output>40</output>

<result>40</result>