Mr. Wang deposits 20,000 yuan in the bank for a period of 2 years, with an annual interest rate of 2.5%.
王师傅把20000元存入银行，定期2年，年利率为2.5%，到期时他可获得本息是多少元．
<gadget id="calculator">2.5 / 100</gadget>
<output>0.025</output>

<gadget id="calculator">20_000 * 0.025 * 2</gadget>
<output>1_000</output>

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

<result>21_000</result>