Prep-T1-Q147

[lovenarimiya]

147. 14800-!-item-!-187;#058&010134
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 average (arithmetic mean) salary of the managers on the task force is $5,000 less than the average salary of all employees on the task force.

(2) The average (arithmetic mean) salary of the directors on the task force is $15,000 greater than the average salary of all employees on the task force.

Ans: (c)


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請參考

http://www.formosamba.com/phpBB3/viewtopi ... rtain+task

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