Mom deposits 20,000 yuan in the bank for three years, with an annual interest rate of 4.15%, and no interest tax is charged. How much money can she get back at maturity?
妈妈存20000元到银行，定期三年，年利率4.15%，不收利息税，到期能取回多少钱？
<gadget id="calculator">4.15 / 100</gadget>
<output>0.0415</output>

<gadget id="calculator">20_000 * 0.0415 * 3</gadget>
<output>2_490</output>

<gadget id="calculator">20_000 + 2_490</gadget>
<output>22_490</output>

<result>22_490</result>