A and B have the same original amount of money, deposit it in the bank, the interest rate is 4% in the first year, and the interest rate drops to 2% after one year of depositing, A will continue to deposit the principal and interest (principal and interest) in the bank, And B deposits half of the principal and interest in the bank, and invests half of the principal and interest in the stock market. The profit invested in the stock market is 20%. Two years later, the money earned by A is 147.6 yuan less than half of the money earned by B. How much yuan does A have? (taxes on interest are ignored)
甲、乙二人原有的钱数相同，存入银行，第一年的利率为4%，存入一年后利率降至2%，甲将本息(本金和利息)继续存入银行，而乙将一半本息存入银行，一半本息投资股市，投入股市的获利20%．两年后，甲赚到的钱比乙赚到的钱的一半还少147.6元，则甲原来有多少元？(利息税忽略不计)
<gadget id="calculator">0.1544 / 2</gadget>
<output>0.0772</output>

<gadget id="calculator">0.0772 - 0.0608</gadget>
<output>0.0164</output>

<gadget id="calculator">147.6 / 0.0164</gadget>
<output>9_000</output>

<result>9_000</result>