Wang Qiang deposited 1,000 yuan in the bank at an annual interest rate of 2.25%. After two years, calculate how much he will earn after paying the 5% interest tax.
王强把1000元按年利率2.25%存入银行．两年后计算他缴纳5%利息税后的实得利息应是多少元．
<gadget id="calculator">2.25 / 100</gadget>
<output>0.0225</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">1_000 * 0.0225 * 2 * (19/20)</gadget>
<output>42.75</output>

<result>42.75</result>