Uncle Wang deposits 30,000 yuan in the bank for three years, and withdraws the principal and interest of 33,825 yuan after maturity. What is the annual interest rate of Uncle Wang’s deposit?
王叔叔将30000元存入银行三年，到期后取出本金和利息共33825元，王叔叔存款的年利率是多少
<gadget id="calculator">33_825 - 30_000</gadget>
<output>3_825</output>

<gadget id="calculator">3_825 / 3 / 30_000</gadget>
<output>17/400 = around 0.0425</output>

<result>17/400 = around 0.0425</result>