这种题目完全好茫然

lmlsdo0218

之前这种题还是会做的，跟别人辩了一遍之后····混乱了

Last year the range of the annual salaries of the 100 employees at Company X was $30,000.  If the annual salary of each of the 100 employees this year is 10 percent greater than it was last year, what is the range of the annual salaries of the 100 employees this year?

(A) $27,000

(B) $30,000

(C) $33,000

(D) $36,000

(E) $63,000

keanzhao

最少的一个设x,另一个就是x+30000,都加10%=1.1x和1.1x+33000,那么range就是33000拉

hysteries

设last year 拿工资最少的员工和拿工资最多的员工分别拿A刀，B刀，B-A=30,000;
那么今年就是1.1A和1.1B， 1.1B-1.1A=1.1x(B-A)=1.1x30,000=33,000
选C对吗

lmlsdo0218

感谢大家，其实我混乱的就是A is greater than B不明白用那个乘以那个百分号，现在大概懂了