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In Greenville last July, what was the average (arithmetic

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In Greenville last July, what was the average (arithmetic [#permalink] New post 21 Sep 2012, 07:38
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In Greenville last July, what was the average (arithmetic mean) home sale price?

(1) In Greenville last July, there were 100 homes sold for a total of $51 million.
(2) In Greenville last July, condominiums accounted for 60% of the home sales, and the average condominium price was $450,000.

[Reveal] Spoiler:
I have two documents. Both have different answers. Please explain.

Last edited by Bunuel on 21 Sep 2012, 07:40, edited 1 time in total.
Renamed the topic and edited the question.
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Re: In Greenville last July, what was the average (arithmetic [#permalink] New post 29 Sep 2012, 20:32
Guys, Please reply.
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Re: In Greenville last July, what was the average (arithmetic [#permalink] New post 30 Sep 2012, 22:21
Expert's post
rohitgarg wrote:
In Greenville last July, what was the average (arithmetic mean) home sale price?

(1) In Greenville last July, there were 100 homes sold for a total of $51 million.
(2) In Greenville last July, condominiums accounted for 60% of the home sales, and the average condominium price was $450,000.

[Reveal] Spoiler:
I have two documents. Both have different answers. Please explain.


I think people can interpret it in different ways and hence arrive at different answers.

(1) In Greenville last July, there were 100 homes sold for a total of $51 million.
It is a little unclear whether only 100 homes were sold or the data is about 100 out of all the homes sold.
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Re: In Greenville last July, what was the average (arithmetic [#permalink] New post 06 Oct 2012, 05:18
rohitgarg wrote:
In Greenville last July, what was the average (arithmetic mean) home sale price?

(1) In Greenville last July, there were 100 homes sold for a total of $51 million.
(2) In Greenville last July, condominiums accounted for 60% of the home sales, and the average condominium price was $450,000.

[Reveal] Spoiler:
I have two documents. Both have different answers. Please explain.



A looks like the answer. (If only 100 homes were sold)

1) 51mil/100 = Average of every house
SUFFICIENT

2) Taking weighted averages:
60(450000)+40(X)
------------------------- = Y
60+40
NOT SUFFICIENT

Can you please post the OAs from those two sources?
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Re: In Greenville last July, what was the average (arithmetic [#permalink] New post 21 Jan 2013, 07:48
how on earth would one know what a condominium is :shock: .. :evil:
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Re: In Greenville last July, what was the average (arithmetic [#permalink] New post 23 Jan 2013, 05:15
rohitgarg wrote:
In Greenville last July, what was the average (arithmetic mean) home sale price?

(1) In Greenville last July, there were 100 homes sold for a total of $51 million.
(2) In Greenville last July, condominiums accounted for 60% of the home sales, and the average condominium price was $450,000.



I think the wording of this question is unclear.

My answer:

If 100 homes represent the total units inclusive of condominiums:
1. 51,000,000 / 100 will give us the answer. SUFFICIENT.
2. .6 (450,000) + .4P =? INSUFFICIENT.

Answer: A

If 100 homes represent part of the total only...
1. INSUFFICIENT.
2. .6 (450,000) + .4P =? INSUFFICIENT.

Together (1) and (2):
100 is .4x ==> x = 1000/4 = 250

= .6 (250) (450,000) + 51,000,000 / 250
which is SUFFICIENT

Answer: C
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Re: In Greenville last July, what was the average (arithmetic [#permalink] New post 26 Jan 2013, 09:30
mbaiseasy wrote:
rohitgarg wrote:
In Greenville last July, what was the average (arithmetic mean) home sale price?

(1) In Greenville last July, there were 100 homes sold for a total of $51 million.
(2) In Greenville last July, condominiums accounted for 60% of the home sales, and the average condominium price was $450,000.



I think the wording of this question is unclear.

My answer:

If 100 homes represent the total units inclusive of condominiums:
1. 51,000,000 / 100 will give us the answer. SUFFICIENT.
2. .6 (450,000) + .4P =? INSUFFICIENT.

Answer: A

If 100 homes represent part of the total only...
1. INSUFFICIENT.
2. .6 (450,000) + .4P =? INSUFFICIENT.

Together (1) and (2):
100 is .4x ==> x = 1000/4 = 250

= .6 (250) (450,000) + 51,000,000 / 250
which is SUFFICIENT

Answer: C


___________________________

1) total ammmount (51Mil)/no.of houses(100) = Average : Sufficent
2) 60%house hold = 450,000 from this we can find out 100% of house fold

Both are sufficient - D

Could any one please confirm me the right answer?

Last edited by schittuluri on 27 Jan 2013, 14:01, edited 4 times in total.
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Re: In Greenville last July, what was the average (arithmetic [#permalink] New post 26 Jan 2013, 09:30
mbaiseasy wrote:
rohitgarg wrote:
In Greenville last July, what was the average (arithmetic mean) home sale price?

(1) In Greenville last July, there were 100 homes sold for a total of $51 million.
(2) In Greenville last July, condominiums accounted for 60% of the home sales, and the average condominium price was $450,000.



I think the wording of this question is unclear.

My answer:

If 100 homes represent the total units inclusive of condominiums:
1. 51,000,000 / 100 will give us the answer. SUFFICIENT.
2. .6 (450,000) + .4P =? INSUFFICIENT.

Answer: A

If 100 homes represent part of the total only...
1. INSUFFICIENT.
2. .6 (450,000) + .4P =? INSUFFICIENT.

Together (1) and (2):
100 is .4x ==> x = 1000/4 = 250

= .6 (250) (450,000) + 51,000,000 / 250
which is SUFFICIENT

Answer: C


___________________________

1) total ammmount (51Mil)/no.of houses(100) = Average : Sufficent
2) 60%house hold = 450,000 from this we can find out 100% of house fold

Both are sufficient - D
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Re: In Greenville last July, what was the average (arithmetic [#permalink] New post 26 Jan 2013, 18:03
Expert's post
Sachin9 wrote:
how on earth would one know what a condominium is :shock: .. :evil:


If you come across words you are unfamiliar with, try to figure out the meaning from context.

Statement 2 says 'condominiums accounted for 60% of the home sales'. This means it is some kind of home since its sales figure was included in the home sales figure.

Also, GMAT questions don't use arcane words but you must try to familiarize yourself with the regular use words by reading more.
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Re: In Greenville last July, what was the average (arithmetic [#permalink] New post 25 Aug 2013, 20:06
Quote:
___________________________

1) total ammmount (51Mil)/no.of houses(100) = Average : Sufficent
2) 60%house hold = 450,000 from this we can find out 100% of house fold

Both are sufficient - D


Hi schittuluri,


60%house hold = 450,000 -not true
The question says that the avg condominium price is $450,000 , not the total price.
So, 60%house hold = 450,000 * n (where n is the number of condominiums sold). Since we dont know the value of n. B is not sufficient
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Re: In Greenville last July, what was the average (arithmetic [#permalink] New post 08 Sep 2014, 20:57
My answer is A,

Target Question: Avg cost , So we need total number of houses
1, Total 100 homes and cost given
Can find an Average
But Doubt, Average mean some Of individual cost of each home/100
Here Can we assume that each cost of home is same , Even the set of values might be small or big??

2, know avg cost of 60% houses , No idea about left 40% So Insufficient

Can any one explain Statement 1?
Re: In Greenville last July, what was the average (arithmetic   [#permalink] 08 Sep 2014, 20:57
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