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A precinct is divided into four wards as shown. The two nort

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A precinct is divided into four wards as shown. The two nort [#permalink] New post 10 Jan 2020, 02:25
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83% (01:18) correct 16% (01:33) wrong based on 30 sessions
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#greprepclub A precinct is divided into four wards as shown. The two northern wards have exactly.jpg
#greprepclub A precinct is divided into four wards as shown. The two northern wards have exactly.jpg [ 18.25 KiB | Viewed 532 times ]


A precinct is divided into four wards as shown. The two northern wards have exactly 30 Democrats each and the two eastern wards have an average (arithmetic mean) of 35 Democrats per ward.

Quantity A
Quantity B
The average (arithmetic mean) number of Democrats in the two southern wards
\(25\)



A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.

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[Reveal] Spoiler: OA

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Re: A precinct is divided into four wards as shown. The two nort [#permalink] New post 10 Jan 2020, 05:42
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According to the question there are 30 each in the two northern wards.
Now, the average of two eastern wards = 35.
Sum of the democrats in eastern ward = 70 (\(35 \times 2\)).

Now, one of them is a northern ward which has 30 democrats so the remaining eastern ward will have 40 democrats.

The remaining ward is a part of the southern wards. We cannot calculate the exact number of democrats from the given information.

It is impossible to determine the relationship as all options A,B,C are possible.

Hence, D
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Re: A precinct is divided into four wards as shown. The two nort [#permalink] New post 13 Jan 2020, 19:43
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A.........B
. .
. .
. .
C.........D
According to given info, A=30, B=30 and B+D=70. So, D=40
30.........30
. .
. .
. .
C.........40

No info is given for C.
If c=10, the average of C&D will be 25 (which is equal to QUANTITY B)
If c=40, the average of C&D will be 40 (which is greater than QUANTITY B)
So, we can not decide.
D is my answer
Re: A precinct is divided into four wards as shown. The two nort   [#permalink] 13 Jan 2020, 19:43
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A precinct is divided into four wards as shown. The two nort

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