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by likewhoa » Mon Nov 26, 2007 7:43 am
some computers at a certainm company are Brand X and the rest are Brand Y. If the ratio of the number of Brand Y computers to the number of Brand X computers at the company is 5 to 6, how many of the computers are Brand Y?

(1) There are 80 more brand X computers than Brand Y computers at the company

(2) There is a total of 880 computers at the company


answer:D
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Source: — Data Sufficiency |
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by sujaysolanki » Mon Nov 26, 2007 8:00 pm
From stem y/x = 5/6


From 1 y = x + 80 ...Putting this is stem sufficient


From 2 x + y = 880 ..put stem in 2 sufficient


From stem Total = 47m

June = x
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