Gao Heng's father deposits 40,000 yuan in the bank and withdraws it in lump sum for 5 years. The annual interest rate is 3.5%.
高恒的爸爸把40000元存入银行、整存整取5年，年利率是3.5%，到期时可取回税后利息和本金共多少元？
<gadget id="calculator">3.5 / 100</gadget>
<output>0.035</output>

<gadget id="calculator">40_000 * 0.035 * 5</gadget>
<output>7_000</output>

<gadget id="calculator">40_000 + 7_000</gadget>
<output>47_000</output>

<result>47_000</result>