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At Petes halloween party this yr,everyone had to dress as a

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At Petes halloween party this yr,everyone had to dress as a [#permalink] New post 22 Jul 2009, 03:56
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At Petes halloween party this yr,everyone had to dress as a ninja or a pirate.If there are 18 ppl dressed as pirates,how many ppl are at the party?
1. there are 3 times as many women dressed as pirates as there are men dressed as ninjas.
2.There are three times as many men dressed as pirates as there are women dressed as ninjas.

Allright,so clearly each stmt. alone is insufficient.We are left with two equations:N=ninja,W=women,M=males.P=pirates

Nm=3Pw and Nw=3Pm
How is the OA:c?We can take multiples values and satisy the equation.!Kindly explain!
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Re: Petes halloween party!! [#permalink] New post 22 Jul 2009, 04:02
C.
Because there are 18 people that dress pirate.
wp=3mn
mp=3wn
wp+mp=18
so mn+wn=6
There are 24 people
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Re: Petes halloween party!! [#permalink] New post 22 Jul 2009, 04:55
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I normally use tables for such problems and find it very easy!
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Re: Petes halloween party!!   [#permalink] 22 Jul 2009, 04:55
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At Petes halloween party this yr,everyone had to dress as a

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