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# At a certain hospital, 75% of the interns receive fewer than

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SVP
Joined: 11 Mar 2008
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At a certain hospital, 75% of the interns receive fewer than [#permalink]

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24 Mar 2008, 16:37
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

At a certain hospital, 75% of the interns receive fewer than 6 hours of sleep and report feeling tired during their shifts. At the same time, 70% of the interns who receive 6 or more hours of sleep report no feelings of tiredness. If 80% of the interns receive fewer than 6 hours of sleep, what percent of the interns report no feelings of tiredness during their shifts?

A) 6
B) 14
C) 19
D) 20
E) 81
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SVP
Joined: 29 Aug 2007
Posts: 2472

Kudos [?]: 843 [0], given: 19

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24 Mar 2008, 23:24
terp06 wrote:
At a certain hospital, 75% of the interns receive fewer than 6 hours of sleep and report feeling tired during their shifts. At the same time, 70% of the interns who receive 6 or more hours of sleep report no feelings of tiredness. If 80% of the interns receive fewer than 6 hours of sleep, what percent of the interns report no feelings of tiredness during their shifts?

A) 6
B) 14
C) 19
D) 20
E) 81

questions like this one is pretty confusing and I do not get any difference between "75% of the interns receive fewer than 6 hours of sleep and report feeling tired during their shifts" and "80% of the interns receive fewer than 6 hours of sleep".

huh............
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Manager
Joined: 21 Feb 2008
Posts: 66

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25 Mar 2008, 01:34
GMAT TIGER wrote:
terp06 wrote:
At a certain hospital, 75% of the interns receive fewer than 6 hours of sleep and report feeling tired during their shifts. At the same time, 70% of the interns who receive 6 or more hours of sleep report no feelings of tiredness. If 80% of the interns receive fewer than 6 hours of sleep, what percent of the interns report no feelings of tiredness during their shifts?

A) 6
B) 14
C) 19
D) 20
E) 81

questions like this one is pretty confusing and I do not get any difference between "75% of the interns receive fewer than 6 hours of sleep and report feeling tired during their shifts" and "80% of the interns receive fewer than 6 hours of sleep".

huh............

yep true!

If the first condition were 75% of the interns who receive fewer than 6 hours... the ans would be 70% of (100% - 80%) which is 14%

If the condition is as it is stated, it's a bumble!
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SVP
Joined: 28 Dec 2005
Posts: 1545

Kudos [?]: 179 [0], given: 2

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25 Mar 2008, 16:57
80% get fewer than 6 hrs and dont feel tired ?

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Re: Tired Interns   [#permalink] 25 Mar 2008, 16:57
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