Dahai and Datao are twins. Their father is 32 years old this year, and Dahai is 5 years old this year. How many years later, the combined age of their father and son is 60 years old.
大海、大涛是双胞胎，爸爸今年32岁，大海今年5岁，在多少年后，他们父子三人的年龄之和为60岁．
<gadget id="calculator">32 + 5 + 5</gadget>
<output>42</output>

<gadget id="calculator">60 - 42</gadget>
<output>18</output>

<gadget id="calculator">18 / 3</gadget>
<output>6</output>

<result>6</result>