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In a company survey, 1,000 employees were each asked whether they take
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11 Jan 2024, 16:16
11 Jan 2024, 16:16
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In a company survey, 1,000 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
(A) 110
(B) 130
(C) 170
(D) 220
(E) 350
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Joined: 11 Nov 2023
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WE:Business Development (Advertising and PR)
Re: In a company survey, 1,000 employees were each asked whether they take
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18 Jan 2024, 23:25
18 Jan 2024, 23:25
1
Since this involves 2 overlapping sets, the equation can be interpreted as:
(# of employees who take tea) + (# of employees who take coffee) - (# of employees who take both) + (# of employees who take neither) = 1000
(0.60 * 1000) + (0.62 * 1000) - (0.35 * 1000) + n = 1000
600 + 620 - 350 + n = 1000
n = 130
(# of employees who take tea) + (# of employees who take coffee) - (# of employees who take both) + (# of employees who take neither) = 1000
(0.60 * 1000) + (0.62 * 1000) - (0.35 * 1000) + n = 1000
600 + 620 - 350 + n = 1000
n = 130
gmatclubot
Re: In a company survey, 1,000 employees were each asked whether they take [#permalink]
18 Jan 2024, 23:25
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