Teacher Liu deposits 10,000 yuan in the bank with an annual interest rate of 5.40%, and the interest after maturity is 1,620 yuan. How many years has she deposited in total?
刘老师把10000元钱存入银行，年利率5.40%，到期后利息是1620元，则她一共存了多少年
<gadget id="calculator">5.4 / 100</gadget>
<output>0.054</output>

<gadget id="calculator">10_000 * 0.054</gadget>
<output>540</output>

<gadget id="calculator">1_620 / 540</gadget>
<output>3</output>

<result>3</result>