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07-20-2001, 11:44 PM
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#1 |
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Elite Waterdeep Guard
 Join Date: July 18, 2001
Location: La Crescenta
Posts: 32
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Ok to all your math guys i have a question
"I have as many brothers as sisters, but my brothers have twice the number of sisters as brothers" i know the answer is 7, but how does the logic work? |
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07-21-2001, 07:14 AM
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#2 |
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Zhentarim Guard
 Join Date: March 11, 2001
Location: Long Beach, MS
Posts: 354
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If the imp is female, then there are four female and three male. Three of each. The trouble you have in your logic no doubt is that you count the brother amongst his brothers when comparing (3 to 4). The BROTHER would have two other brothers (for a total of three males) and four sisters. 2+4+ the other brother.
Don't feel bad, it got me two for a long time! |
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07-22-2001, 04:13 AM
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#3 |
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Elite Waterdeep Guard
Join Date: July 18, 2001
Location: La Crescenta
Posts: 32
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ahhh i see now...thak you, o wise one~
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07-22-2001, 08:33 AM
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#4 |
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Ironworks Moderator
 Join Date: February 28, 2001
Location: Boston/Sydney
Posts: 11,771
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This was was definitely a GMAT question, wasn't it.
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07-22-2001, 06:42 PM
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#5 |
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Zhentarim Guard
Join Date: June 21, 2001
Posts: 306
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Hmm, how were we supposed to know the imp was female? I didn't realize the imp was talking about him/herself. Thanks for the explanation though.
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