A family consists of a husband, wife and daughters whose sum of ages is 60 years old. The wife is 4 years younger than her husband, and the sum of the ages of the family members 5 years ago was 48 years old. So what is the age of the husband in this family member?
一个家庭由丈夫、妻子和女儿组成，他们的年龄和是60岁．妻子比丈夫小4岁，5年前这个家庭成员的年龄和是48岁．那么这个家庭成员中丈夫的年龄是多少岁．
<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">48 + 10</gadget>
<output>58</output>

<gadget id="calculator">58 + 4</gadget>
<output>62</output>

<gadget id="calculator">62 / 2</gadget>
<output>31</output>

<result>31</result>