Mom has deposited 50,000 yuan in the bank for three years, and the annual interest rate is 3.35%. After the maturity, how much after-tax interest can mother get?
妈妈在银行存了50000元，定期三年，年利率是3.35%，到期后，妈妈可得到税后利息多少元？
<gadget id="calculator">3.35 / 100</gadget>
<output>0.0335</output>

<gadget id="calculator">50_000 * 0.0335 * 3</gadget>
<output>5_025</output>

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

<gadget id="calculator">5_025 * (1/5)</gadget>
<output>1_005</output>

<gadget id="calculator">5_025 - 1_005</gadget>
<output>4_020</output>

<result>4_020</result>