Mr. Wang bought 1,500 yuan of national construction bonds, fixed for 3 years, if the annual interest rate is 3%, how much yuan can he get the principal and interest when it matures.
王老师买了1500元国家建设债券，定期3年，如果年利率3%，到期时他可以获得本金和利息一共多少元．
<gadget id="calculator">3 / 100</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">1_500 * (3/100) * 3</gadget>
<output>135</output>

<gadget id="calculator">135 + 1_500</gadget>
<output>1_635</output>

<result>1_635</result>