题目

Q1:
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
A.Statement (1) ALONE is sufficient,but statement (2) alone is not sufficient.
B.Statement (2) ALONE is sufficient,but statement (1) alone is not sufficient.
C.BOTH statements TOGETHER are sufficient,but NEITHER statement ALONE is sufficient.
D.EACH statement ALONE is sufficient.
E.Statements (1) and (2) TOGETHER are NOT sufficient.
我不明白（2）为什么能推出结论.
If n is a positive integer,what is the remainder when (74n + 3)(6n) is divided by 10
A.1
B.2
C.4
D.6
E.8
Q3:
A certain list consists of 3 different numbers.Does the median of the 3 numbers equal the average (arithmetic mean) of the 3 numbers?
(1) The ran

提问时间：2021-03-16

答案

我又来了,哈哈Q1：GWD数学里的一道争议题,国内外论坛都有所讨论第一种观点是答案错误statement (1):r=10>8,Sufficientstatement (2):要使r>8,(1 + r/100)^2必大于1.1664,(1 + r/100)^2>1.15,r可能大于也可能小于8,In...