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What percent of the employees of Company X are technicians?

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What percent of the employees of Company X are technicians?  [#permalink]

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New post 06 Dec 2017, 03:11
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A
B
C
D
E

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  35% (medium)

Question Stats:

78% (00:43) correct 22% (01:13) wrong based on 78 sessions

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Project DS Butler: Day 32: Data Sufficiency (DS64)


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What percent of the employees of Company X are technicians?

(1) Exactly 40% of the men and 55% of the women employed by Company X are technicians
(2) At company X, the ratio of the number of technicians to the number of nontechnicians is 9 to 11

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Re: What percent of the employees of Company X are technicians?  [#permalink]

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New post 06 Dec 2017, 03:26
(1) We don't know the relationship between actual values of M & W
(2) we don't know the % of technicians among M&W
(1)+(2) combining we get
x=9/11y
substituting
4/10*9/11*y+55/100*y= requested outcome

Answer C
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Re: What percent of the employees of Company X are technicians?  [#permalink]

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New post 06 Dec 2017, 03:37
Bunuel wrote:
What percent of the employees of Company X are technicians?

(1) Exactly 40% of the men and 55% of the women employed by Company X are technicians
(2) At company X, the ratio of the number of technicians to the number of nontechnicians is 9 to 11


(1) We don' t have details about men-women ratio/numbers..not sufficient

(2) number of T: Number of NT:: 9:11
number of T: Total sum of T & NT::9:20
% of employees who are T = 9/20 = 45%

B
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Re: What percent of the employees of Company X are technicians?  [#permalink]

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New post 06 Dec 2017, 05:13
B.

Ratio itself is enough to conclude the percentage. 9x+11x= 20 x total employees. 9x are technicians . { x is a multiple }

(9x/20x )*100 is the percentage
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Re: What percent of the employees of Company X are technicians?  [#permalink]

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New post 06 Dec 2017, 05:46
Alexey1989x wrote:
(1) We don't know the relationship between actual values of M & W
(2) we don't know the % of technicians among M&W
(1)+(2) combining we get
x=9/11y
substituting
4/10*9/11*y+55/100*y= requested outcome

Answer C



Hello,

Answer should be B not C. For statement 1, we do not have data about the number of men or women-depending on that, % can change.
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Re: What percent of the employees of Company X are technicians?  [#permalink]

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New post 11 Dec 2018, 06:28
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Re: What percent of the employees of Company X are technicians? &nbs [#permalink] 11 Dec 2018, 06:28
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