求救!关于DS题,基本概念都没搞懂

就快考试了,数学一直没什么时间复习,DS题的一个基本概念也没搞清楚.

举一个本月JJ的例子

110ds:5000 deposit, rate 4%, compounded annually. 2 years later, premium and interests are deposited in another bank for another 2 years. is the rate(also compounded annually)greater than the former one? 1) after these 4 years we total get 5800; 2)

我不太明白,DS题到底要找能够使rate大于4%的选项,还是要找能够确定rate是否大于4%的选项.

具体的说,如果一个选项,可以确定后两年的rate为3%,也就是不大于4%,那这个是否是答案呢?

自己顶一下

没人帮忙回答一下吗

就快考试了,数学一直没什么时间复习,DS题的一个基本概念也没搞清楚.

举一个本月JJ的例子

110ds:5000 deposit, rate 4%, compounded annually. 2 years later, premium and interests are deposited in another bank for another 2 years. is the rate(also compounded annually)greater than the former one? 1) after these 4 years we total get 5800; 2)

我不太明白,DS题到底要找能够使rate大于4%的选项,还是要找能够确定rate是否大于4%的选项.

具体的说,如果一个选项,可以确定后两年的rate为3%,也就是不大于4%,那这个是否是答案呢?

是

但是这个题目到底选A还是D呢？