Li Qiang wants to buy a new house and borrows 50,000 yuan from the bank. Based on the loan interest rate of 3.5% a year, how much will he repay to the bank with the principal and interest after three years?
李强要买一套新居，向银行贷款5万元，按贷款利率一年3.5%计算，三年后他连本带息向银行还款多少万元？
<gadget id="calculator">5 * 10_000</gadget>
<output>50_000</output>

<gadget id="calculator">3.5 / 100</gadget>
<output>0.035</output>

<gadget id="calculator">50_000 * 0.035 * 3</gadget>
<output>5_250</output>

<gadget id="calculator">50_000 + 5_250</gadget>
<output>55_250</output>

<result>55_250</result>