Mom deposits 30,000 yuan in the bank for three years, and the annual interest rate is 4.25%. How much yuan can mother get back from the bank when it expires?
妈妈存入银行30000元，定期三年，年利率是4.25%，到期时妈妈从银行一共可以取回多少元？
<gadget id="calculator">4.25 / 100</gadget>
<output>0.0425</output>

<gadget id="calculator">30_000 * 0.0425 * 3</gadget>
<output>3_825</output>

<gadget id="calculator">30_000 + 3_825</gadget>
<output>33_825</output>

<result>33_825</result>