Xiaohong's father's monthly income is 3,000 yuan. According to regulations, the portion exceeding 2,000 yuan should be taxed at 5%. How much is his monthly tax payable.
小红的爸爸月收入是3000元，按规定，超出2000元部分应按5%纳税．他每月应纳税多少元．
<gadget id="calculator">3_000 - 2_000</gadget>
<output>1_000</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1_000 * (1/20)</gadget>
<output>50</output>

<result>50</result>