Pack of 55 wolves

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Pack of 55 wolves

by vikram4689 » Fri Mar 18, 2011 10:56 pm
Each member of a pack of 55 wolves has either brown or blue eyes and either a white or a grey coat. If there are more than 3 blue-eyed wolves with white coats, are there more blue-eyed wolves than brown-eyed wolves?
(1) Among the blue-eyed wolves, the ratio of grey coats to white coats is 4 to 3.
(2) Among the brown-eyed wolves, the ratio of white coats to grey coats is 2 to 1.
Source: — Data Sufficiency |

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by AIM GMAT » Sat Mar 19, 2011 12:20 am
IMO C.

ST 1 :
blue brown
white 3x
grey 4x

And the stem says that BLUE eye with WHITE coat are more than 3 .

=> 3x > 3
=> x >1

If we put values in x , for x= 2 and 3 we get BLUE < BROWN
but for x > 3 BLUE > BROWN


Hence INSUFF.

ST 2 :
blue brown
white 2y
grey y

We dont have any eq to make , so INSUFF.


ST 1 + ST 2:We can find out for which value of x we can get value of y .
Hence SUFF.
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AIM GMAT