Mr. Wang bought 2,000 yuan of three-year treasury bonds with an annual interest rate of 7.8% from the bank, and the maturity will be three years later. How much interest can he get?
王老师从银行购得年利率是7.8%的三年期国库券2000元，三年后到期，他可得利息多少元．
<gadget id="calculator">7.8 / 100</gadget>
<output>0.078</output>

<gadget id="calculator">2_000 * 0.078 * 3</gadget>
<output>468</output>

<result>468</result>