A man lends 6,000 for four years at 6.05 simple interest. At the end of this period,

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A man lends 6,000 for four years at 6.05 simple interest. At the end of this period, he invests the full sum at 5.01% compounded annually for a period of 12 years. How much money will he have at the end of 16 years?
After deducting the 20.10% withholding tax on interest income, a 110,000-time deposit for 31 days earns 890.41 at maturity. Calculate the annual interest rate.