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In a meeting 10% of the people were absent. Among the present, 20% wer

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email2vm
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In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  Updated on: 26 May 2018, 11:56
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In a meeting 10% of the people were absent. Among the present, 20% were not interested and 30% were sleepy. If the number of people invited for the meeting was 120, what is the number of people who were interested.

a> 74
b> 64
c> 54
d> 44
e> 41

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Originally posted by email2vm on 20 Sep 2016, 12:54.
Last edited by Bunuel on 26 May 2018, 11:56, edited 3 times in total.
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abhimahna
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  21 Sep 2016, 01:25
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We are no where given that Sleepy people means not interested.

So, Since total = 120.

Present = 108

Not Interested = 22.

So, interested = 86 , which is greater than 70% of the attendees. Hence, Answer should be A.
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  20 Sep 2016, 17:19
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email2vm wrote:
In a meeting 10% of the people were absent. Among the present, 20% were not interested and 30% were sleepy. If the number of people invited for the meeting was 120, what is the number of people who were interested.

a> 74
b> 64
c> 54
d> 44
e> 41

I do not have answer to this question. What is the correct answer?


There isn't one; are the sleepy ones interested or not?
Plus, 20% of those present, i.e. 108 gives you 21.6 people. Uh-oh! Back up!
Or, 20% + 30% could give you half of the 108 present = 54
And what about the uninvited people?
And how about a question mark at the end?
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  20 Sep 2016, 20:46
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Ans : 64% ?
Reasoning:
Total people invited : 120
People present : 108 since 10% absent
Not interested people: 10.8 = 11 (coz people should be an integer, and 10% of present people are not interested)
Sleepy people : 32.4 = 33 (coz people should be an integer, and 30% of present people are not interested)
Now Present people = Interested people + Not interested people + Sleepy people
108 = Interested people + 11+33
So, Interested people = 64

Please advise if am accurate or any obvious mistake.

Thanks
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  21 Sep 2016, 02:12
abhimahna Aha!!! that's the catch. Nice thinking. Appreciate it!
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  21 Sep 2016, 02:40
I got option C as answer assuming 30% sleepy one's are also not interested.
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  21 Sep 2016, 02:50
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gauravk wrote:
I got option C as answer assuming 30% sleepy one's are also not interested.


You cannot assume it on your own unless its explicitly stated. This is the main reason this question has included that information just to make people confused.
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  21 Sep 2016, 03:01
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email2vm wrote:
In a meeting 10% of the people were absent. Among the present, 20% were not interested and 30% were sleepy. If the number of people invited for the meeting was 120, what is the number of people who were interested.

a> 74
b> 64
c> 54
d> 44
e> 41

I do not have answer to this question. What is the correct answer?


Not a 700 level Q..
Only 90% are present..
20% of these are not interested, so remaining 80% are interested..
So (80*90/100)% or 72% are interested..
72% of 120 ...almost 86%
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  21 Sep 2016, 03:29
abhimahna wrote:
gauravk wrote:
I got option C as answer assuming 30% sleepy one's are also not interested.


You cannot assume it on your own unless its explicitly stated. This is the main reason this question has included that information just to make people confused.


Agreed.

Need to follow basic rule of "No Assumptions"
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  23 May 2018, 15:38
abhimahna wrote:
We are no where given that Sleepy people means not interested.

So, Since total = 120.

Present = 108

Not Interested = 22.

So, interested = 86 , which is greater than 70% of the attendees. Hence, Answer should be A.


So, you and Chetan got 86, ok. Lets assume that "sleepy" does not mean "not interested".

So why is the answer A after that?
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  26 May 2018, 11:55
DharLog wrote:
abhimahna wrote:
We are no where given that Sleepy people means not interested.

So, Since total = 120.

Present = 108

Not Interested = 22.

So, interested = 86 , which is greater than 70% of the attendees. Hence, Answer should be A.


So, you and Chetan got 86, ok. Lets assume that "sleepy" does not mean "not interested".

So why is the answer A after that?

The answers are described badly imo.

I think you want to express that 86 > 64 so C might also be a possible answer. Anyways, answer A most accurately described the number of interested people because 74 is the closest option to 86.
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  26 May 2018, 16:06
Masterscorp wrote:
DharLog wrote:
abhimahna wrote:
We are no where given that Sleepy people means not interested.

So, Since total = 120.

Present = 108

Not Interested = 22.

So, interested = 86 , which is greater than 70% of the attendees. Hence, Answer should be A.


So, you and Chetan got 86, ok. Lets assume that "sleepy" does not mean "not interested".

So why is the answer A after that?

The answers are described badly imo.

I think you want to express that 86 > 64 so C might also be a possible answer. Anyways, answer A most accurately described the number of interested people because 74 is the closest option to 86.


I can accept it. But if GMAT does so, it is awful
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Re: In a meeting 10% of the people were absent. Among the present, 20% wer [#permalink] New post  29 May 2018, 03:01
Poor Quality question. Whats the source?
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