Xiao Yu deposits 20,000 RMB in the bank for 3 years. If the annual interest rate is 2.5%, the new state regulations do not pay interest tax. After the maturity, she will get the principal and interest.
小雨将20000人民币存入银行定期3年，如果年利率是2.5%，国家新规定不用纳利息税，到期后，她可得本息多少元．
<gadget id="calculator">2.5 / 100</gadget>
<output>0.025</output>

<gadget id="calculator">20_000 * 0.025 * 3</gadget>
<output>1_500</output>

<gadget id="calculator">20_000 + 1_500</gadget>
<output>21_500</output>

<result>21_500</result>