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# On july 1of last year, the total number of employees at

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Manager
Joined: 11 Jan 2006
Posts: 230

Kudos [?]: 18 [0], given: 18

Location: Arkansas, US
WE 1: 2.5 yrs in manufacturing
On july 1of last year, the total number of employees at [#permalink]

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02 Oct 2006, 21:25
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On july 1of last year, the total number of employees at company E was decreased by 10%. Without any change in the salaries of the remaining employees, the average employee salary was 10% more after the decrease in number of employees than before the decrease. The total of the combined salaries of all of the employees at company E after July 1 last year was what % of that before July 1 last year?

a. 90%
b. 99%
c. 100%
d. 101%
e. 110%

plzzz..post explanation
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ARISE AWAKE AND REST NOT UNTIL THE GOAL IS ACHIEVED

Kudos [?]: 18 [0], given: 18

VP
Joined: 25 Jun 2006
Posts: 1161

Kudos [?]: 203 [0], given: 0

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02 Oct 2006, 22:39
T1 for total salary before the decrease.
T2 for that after decrease.
n for hte no of employees before decrease.

u get:

(T1/n)(1 + 10%) = T2/( n*(1-10%) )

u get T2/T1 = 99%

hence B.

Kudos [?]: 203 [0], given: 0

02 Oct 2006, 22:39
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# On july 1of last year, the total number of employees at

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