If m, r, x and y are positive, the ratio of m to r equal to the ratio x to y?

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If m, r, x and y are positive, the ratio of m to r equal to the ratio x to y?

(1) The ratio of m to y is equal to the ratio of x to r
(2) The ratio of m + x to r + y is equal to the ratio of x to y

Answer: B
Source: GMAT prep
Source: — Data Sufficiency |