GMAT Question of The Day:In a certain population, x out of every y persons are found to have characteristic *

Filed under GMAT Question of the Day, Problem Solving by on February 12, 2012 at 12:00 AM {15 comments}

In a certain population, x out of every y persons are found to have characteristic * . If 200 persons are found to have characteristic *, then which  of the following expressions provides the total number of persons in the population?

(A) 200x

(B) 200xy

(C) 200x/y

(D) 200y/x

(E) 200(x -y)

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