Dad deposits 20,000 yuan in the bank and withdraws it in lump sum for five years. The annual interest rate is 3.60%, and the interest tax is 20%.
爸爸将20000元钱存入银行，整存整取五年，年利率是3.60%，利息税20%，到期后爸爸能取出本金和利息一共多少元？
<gadget id="calculator">3.6 / 100</gadget>
<output>0.036</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">20_000 * 0.036 * 5 * (4/5)</gadget>
<output>2_880</output>

<gadget id="calculator">2_880 + 20_000</gadget>
<output>22_880</output>

<result>22_880</result>