The younger brother has 16 story books, and the older brother gives the younger brother 2 more. At this time, the ratio of the number of story books between the younger brother and the older brother is 3:5. How many story books does my brother have?
弟弟有故事书16本，哥哥再给弟弟2本，这时，弟弟与哥哥的故事书的本数比是3：5．哥哥原有多少本故事书．
<gadget id="calculator">16 + 2</gadget>
<output>18</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">18 / (3/5)</gadget>
<output>30</output>

<gadget id="calculator">30 + 2</gadget>
<output>32</output>

<result>32</result>