Aunt Wang bought treasury bonds of 25,000 yuan, fixed for 3 years, and the annual interest rate is 3.1%. After the maturity, how much will she get in total for the principal and interest?
王大妈买国库券2.5万元，定期3年，年利率是3.1%，到期以后她可以得到本金和利息一共多少元？
<gadget id="calculator">2.5 * 10_000</gadget>
<output>25_000</output>

<gadget id="calculator">3.1 / 100</gadget>
<output>0.031</output>

<gadget id="calculator">25_000 * 0.031 * 3</gadget>
<output>2_325</output>

<gadget id="calculator">25_000 + 2_325</gadget>
<output>27_325</output>

<result>27_325</result>