题目
Each employee of a certain company is in either Department X or Department and there are more than twice as many employees in Department X as in Department Y.The average salary is $25,000 for the emplyees in Department X and is $35,000 for the emplyees in Department Y.Which of the following amounts could be the average salary for all of the emplyees in the company?
Indicate all such amounts.
A.$26,000
B.$28,000
C.$29,000
D.$30,000
E.31,000
F.32000
G.34000
Indicate all such amounts.
A.$26,000
B.$28,000
C.$29,000
D.$30,000
E.31,000
F.32000
G.34000
提问时间:2020-10-18
答案
假设Y有1个人,X有2人,则平均是2733.但X比2人要多,而X的工资有较少,所以真正的要比2733要少故选A.and there are more than twice as many employees in Department X as in Department Y,指x有比Y两倍的人还要多.第一句是表明员工不是X就是Y,不会同属两个部门.
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