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# George and Barbara each soliciting donations for a different charity

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Math Expert
Joined: 02 Sep 2009
Posts: 58465
George and Barbara each soliciting donations for a different charity  [#permalink]

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09 May 2017, 03:06
00:00

Difficulty:

45% (medium)

Question Stats:

54% (01:26) correct 46% (01:11) wrong based on 71 sessions

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George and Barbara each soliciting donations for a different charity and will each visit all houses in Community X. They will visit houses together for an hour and will then separate. Does Barbara collect more money?

(1) When visiting a house together, George always receives a donation twice as large as the donation received by Barbara.
(2) Barbara averages \$2 less per house than George.

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Re: George and Barbara each soliciting donations for a different charity  [#permalink]

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09 May 2017, 03:59
(1) When visiting a house together, George always receives a donation twice as large as the donation received by Barbara.
Just knowing how much money George collects when visiting a house together doesn't give us details who will collect more money overall.
Hence, insufficient.
(2) Barbara averages \$2 less per house than George.
We do not know how many house each of them visits, hence knowing that Barbara had a worse average/house doesn't clarify anything
Hence, insufficient.

Combining the information available in both the options, does not clearly give who will collect more money(Option E)
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Re: George and Barbara each soliciting donations for a different charity  [#permalink]

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12 May 2017, 10:11
Ans b :

Barbara average house collection is \$2 less than George . Its already given both will collect the all houses in community X .So no of houses are same. Therefore Barbara sum would be less and hence B is sufficient
Senior PS Moderator
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George and Barbara each soliciting donations for a different charity  [#permalink]

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12 May 2017, 10:54
Bobbyvg wrote:
Ans b :

Barbara average house collection is \$2 less than George . Its already given both will collect the all houses in community X .So no of houses are same. Therefore Barbara sum would be less and hence B is sufficient

Thanks for pointing our the error. Please find corrected solution

(1) When visiting a house together, George always receives a donation twice as large as the donation received by Barbara.
Just knowing how much money George collects when visiting a house together doesn't give us details who will collect more money overall.
Hence, insufficient.
(2) Barbara averages \$2 less per house than George.
The question stem clearly contains, that each of them visit all the houses in Community B.
Since Barbara's average is lesser than George it is clear George collects more money of the two.
Hence, Sufficient. (Option B)

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Joined: 08 Jun 2015
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Re: George and Barbara each soliciting donations for a different charity  [#permalink]

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30 Jun 2017, 03:53
Statement 1: Says "When visiting a house together, George always receives a donation twice as large as the donation received by Barbara". But what if Barbara herself doesn't collect any money or collect some money. So Statement 1 does not gives us any info about whether Barbara collected money or not.

Statement 2: Definitely gives us info to the question asked by telling that Barbara averages \$2 less per house than George.

Re: George and Barbara each soliciting donations for a different charity   [#permalink] 30 Jun 2017, 03:53
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