求解答

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If $1,000 will be deposited in a bankaccount and I is the dollar amount of interest earned from the originaldeposit, represented as I = 1000 {(1 + r/100)n – 1}, and the annualinterest rate is r percent, is r > 8 percent?

(1)   The deposit earns a totalof $210 in interest in the first 2 years.

(2)    (1 + r/100)2 > 1.15

A. Statement (1) ALONE issufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE issufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHERare sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE issufficient.

E. Statements (1) and (2) TOGETHER are NOTsufficient
如果r>8percent,    (1 + r/100)2应该大于1.1664，第（2）个是不能推出的，为什么答案是D呢？