Compound Interest and Financial Exponential Problems
The question involves compound interest or financial growth modelled by exponential expressions, asking the student to determine shares, totals, or time periods.
Um capital é aplicado a juros compostos de 10\% ao ano. Após 2 anos, o montante é R\$\,12\,100,00. O capital inicial é (A) R\$\,9\,000,00 (B) R\$\,9\,500,00 (C) R\$\,10\,000,00 (D) R\$\,10\,500,00 (E) R\$\,11\,000,00
The compound interest on R\$\,1{,}000.00 at a rate of 10\% per year for 2 years is: (A) R\$\,100.00 (B) R\$\,200.00 (C) R\$\,210.00 (D) R\$\,220.00 (E) R\$\,230.00