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Manager
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four dollars amounts w, x, y, and z, were invested in a [#permalink]
 06 Sep 2006, 18:29
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four dollars amounts w, x, y, and z, were invested in a business. which amount was the greatest?
1. y<z<x
2. x was 25 percent of the total of the four investments.
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Senior Manager
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C
lan583 wrote: four dollars amounts w, x, y, and z, were invested in a business. which amount was the greatest?
1. y<z<x
From 1 we cannot say anything about W INSUFF
2. x was 25 percent of the total of the four investments.
From 2 alone we cannot say about the rest i.e. which is greatest INSUFF
Combining the two if x is the greatest among 3 and is 25% of the total the other two could be 24% and 24%. Hence W would be the greatest.
SUFF
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Manager
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since it did not say anything for w it can be assumed that w can have the greatest value or it can have a value in between the other letters. Am i just missing the whole idea of the problem?
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Senior Manager
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The answer is c since we know that 25*4=100 we can guess that if there is one 25 percent two less than 25 percent than the 4th must be greater than 25 percent
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CEO
Joined: 20 Nov 2005
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C
St1: either w or x could be largest: INSUFF
St2: x = 1/4 (x+y+z+w)
i.e 3x = y+z+w
anybody could be greatest (except x) or all could be equal: INSUFF
Together:
Now we can say that w is greatest.: SUFF
_________________
SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008
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