Aunt Zhang bought 5,000 yuan of three-year treasury bonds with an annual interest rate of 2.89%. How much interest can she get after three years?
张阿姨购得三年期国债5000元，年利率2.89%，三年后她可以得到利息多少元？
<gadget id="calculator">2.89 / 100</gadget>
<output>0.0289</output>

<gadget id="calculator">5_000 * 0.0289 * 3</gadget>
<output>433.5</output>

<result>433.5</result>