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Each employee on a certain task force is either a manager or

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Manager
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Each employee on a certain task force is either a manager or [#permalink] New post 08 Apr 2007, 08:45
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A
B
C
D
E

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Each employee on a certain task force is either a manager or a director. What percent of the employees on the task force are directors?

1) The avg. salary of the managers on the task force is $5,000 less than the avg. salary of all employees on the task force.
2) The avg. salary of the directors on the task force is $15,000 greater than the avg. salary of all the employees on the task force.

OA - C
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 [#permalink] New post 09 Apr 2007, 10:47
E.

you can only compare the difference in average salaries. it does not give you any idea of the ratio of directors or employees or any such information.
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 [#permalink] New post 15 Apr 2007, 04:16
This is what I get from the two equations:

1. Avg(M+D) - Avg(M) = 5000

2. Avg(D) - Avg(M+D) = 15000

But I do not see how we can get any info about the number of managers or directors. So I would go with E.
  [#permalink] 15 Apr 2007, 04:16
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Each employee on a certain task force is either a manager or

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