Ironworks Gaming Forum - **Spoiler** Imp's Math Challenge

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- - **Spoiler** Imp's Math Challenge (http://www.ironworksforum.com/forum/showthread.php?t=17552)

The Black Panda

07-20-2001 11:44 PM

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?

Zateel

07-21-2001 07:14 AM

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!

The Black Panda

07-22-2001 04:13 AM

ahhh i see now...thak you, o wise one~

Memnoch

07-22-2001 08:33 AM

This was was definitely a GMAT question, wasn't it.

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floyd

07-22-2001 06:42 PM

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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