This year, my mother bought 50,000 yuan of three-year certificate-style government bonds, with an annual interest rate of 5.5%. How much interest can be obtained after maturity? (Exemption from interest tax)
今年，妈妈买了三年期凭证式国债5万元，年利率5.5%．到期后可得利息多少万元？(免征利息税)
<gadget id="calculator">5.5 / 100</gadget>
<output>0.055</output>

<gadget id="calculator">5 * 0.055 * 3</gadget>
<output>0.825</output>

<result>0.825</result>