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# It takes 4 weeks for a team of 5 professional Window Washers

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Re: It takes 4 weeks for a team of 5 professional Window Washers [#permalink]

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06 Jan 2012, 23:11
I chose D for this as regular work hours for the team of 5 is not sufficient hence overtime needs to be put in.
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Re: It takes 4 weeks for a team of 5 professional Window Washers [#permalink]

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07 Jan 2012, 05:30
Agree with E
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Re: It takes 4 weeks for a team of 5 professional Window Washers [#permalink]

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09 Jan 2012, 10:03
+1 E
paraphrased in different words..
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Re: It takes 4 weeks for a team of 5 professional Window Washers [#permalink]

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10 Jan 2012, 02:00
+1 for E
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Re: It takes 4 weeks for a team of 5 professional Window Washers [#permalink]

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12 Jan 2012, 03:01
IMO E
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Re: It takes 4 weeks for a team of 5 professional Window Washers [#permalink]

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21 Feb 2012, 22:20
If an empire state building window is to be kept clean, it must be cleaned by a professional cleaner.
B)The owner's demand for proper cleaning of all the windows will never be fulfilled.This could possibly sound correct, but seems too broad to be corect
C) If a team of 5 window washers cleans all the empire state building's windows in less than 4 weeks, some windows will not be properly cleaned.-The stimulus states that 4 week and 5 people are required to complete the job so any less we will not be able to do it.This seems to be a contender.
D) In order to ensure that all of the Empire State Building's windows are clean, the owner must have his window washers work overtime.Not necessarily, he could also employ more ppl and get hte job done,so this is not correct
E)Some Empire State Building windows must be cleaned more frequently than once every four weeks if they are to be kept clean. - not correct too
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Re: It takes 4 weeks for a team of 5 professional Window Washers [#permalink]

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22 Feb 2012, 03:48
I think the key word here is "Completely Clean". It takes them 4 weeks to "Completely Clean" the windows. Which means this is the maximum possible time. We have no clue as to what percent they actually need to clean each time. The last statement in the argument however tells us that some windows will get dirty before the team has finished cleaning the windows. So therefore E stands.

E. Some Empire State Building windows must be cleaned more frequently than once every four weeks if they are to be kept clean.

Hence E
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Re: It takes 4 weeks for a team of 5 professional Window Washers [#permalink]

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22 Feb 2012, 03:59

D: How do we know that overtime is enough to clean the windows? - not sufficient
E: 5 workers need 4 weeks and that is still not enough as some windows need to be cleaned more often than once in 4 weeks. - sufficient
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Re: It takes 4 weeks for a team of 5 professional Window Washers [#permalink]

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22 Feb 2012, 14:16
I eliminated A, C, D and was on B/E. I picked "B" but I totally misunderstood the "never" in answer B would that have been my que to eliminate B instead of E?
Re: It takes 4 weeks for a team of 5 professional Window Washers   [#permalink] 22 Feb 2012, 14:16

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