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What is the ratio of the sum of the incomes of the company R in the years 2007 and 2008 to that of S during the same years, 2007 and 2008?

A.	11:24	B.	15:17
C.	17:59	D.	171:584
E.	173:582

Answer and Explanation

Answer:173:582

Explanation:
Required ratio = [30 x 120/20 + 25 x 130/ 30] / [50/10 x 110 + 70/20 x 120]
=> [180 + 325/3] / [550 + 420] = 865 / 3 x 970 = 173 : 582

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