Aunt Wang bought 2,500 yuan of three-year corporate bonds with an annual interest rate of 4.5%. How much interest should she get after maturity?
王阿姨购得年利率为4.5%的三年期企业债券2500元，到期后应得利息多少元？
<gadget id="calculator">4.5 / 100</gadget>
<output>0.045</output>

<gadget id="calculator">2_500 * 0.045 * 3</gadget>
<output>337.5</output>

<result>337.5</result>