Teacher Zhang deposits 2000 yuan in the bank at an annual interest rate of 4% for five years. When the maturity is due, the bank will pay him the total amount of principal and interest. (Known interest tax is 5%)
张老师把2000元按4%的年利率存入银行五年，到期时银行应付给他本金和利息共多少元．(已知利息税为5%)
<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

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

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">2_000 * (1/25) * 5 * (19/20)</gadget>
<output>380</output>

<gadget id="calculator">2_000 + 380</gadget>
<output>2_380</output>

<result>2_380</result>