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In a company survey, 1000 employees were each asked whether they take

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In a company survey, 1000 employees were each asked whether they take  [#permalink]

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New post 04 Oct 2018, 00:09
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Question Stats:

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In a company survey, 1000 employees were each asked whether they take tea or coffee. As per the survey, 60 percent of the employees take tea, 62 percent take coffee, and 35 percent take both tea and coffee. How many employees surveyed take neither tea nor coffee?

(A) 110
(B) 130
(C) 170
(D) 220
(E) 350

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Re: In a company survey, 1000 employees were each asked whether they take  [#permalink]

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New post 04 Oct 2018, 00:17
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Bunuel wrote:
In a company survey, 1000 employees were each asked whether they take tea or coffee. As per the survey, 60 percent of the employees take tea, 62 percent take coffee, and 35 percent take both tea and coffee. How many employees surveyed take neither tea nor coffee?

(A) 110
(B) 130
(C) 170
(D) 220
(E) 350


Total = Tea taker + Coffee takers - Both takers - None takers

1000 = 600 + 620 - 350 + None takers

None Takers = 1000-870 = 130

Answer: Option B
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Re: In a company survey, 1000 employees were each asked whether they take  [#permalink]

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New post 04 Oct 2018, 00:19
Bunuel wrote:
In a company survey, 1000 employees were each asked whether they take tea or coffee. As per the survey, 60 percent of the employees take tea, 62 percent take coffee, and 35 percent take both tea and coffee. How many employees surveyed take neither tea nor coffee?

(A) 110
(B) 130
(C) 170
(D) 220
(E) 350


Solved using double matrix

Those who drink tea are 600 and those who don’t are 400.

Those whoe drink coffee are 620 and those who don’t are 380

Those who drink both are 350

From that we can find out those who drink tea but not coffee = 600-350 = 250

And from this we can find out the number of those who drink neither coffee nor tea

380-250 = 130

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Re: In a company survey, 1000 employees were each asked whether they take   [#permalink] 04 Oct 2018, 00:19
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