Q10: If $1,000 will be deposited in a bank account and I is the dollar amount of interest earned from the original deposit, represented as I = 1000 {(1 + r/100)n – 1}, and the annual interest rate is r percent, is r > 8 percent? (1) The deposit earns a total of $210 in interest in the first 2 years. (2) (1 + r/100)2 > 1.15 这道题选D,是不是因为R>8%,若是R>8,条件2就错了,因为,r=7.9, 也会有(1 + r/100)2 > 1.15 |