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100 points for $49 worth of Veritas practice GMATs FREE VERITAS PRACTICE GMAT EXAMS Earn 10 Points Per Post Earn 10 Points Per Thanks Earn 10 Points Per Upvote ## If the number of red marbles is three . . . . tagged by: VJesus12 ##### This topic has 1 expert reply and 0 member replies ### Top Member ## If the number of red marbles is three . . . . If the number of red marbles is three times the number of green marbles in a bowl of marbles with only two colors of marbles, what is the ratio of the green marbles to all the marbles? A. 1 : 3 B. 1 : 4 C. 3 : 4 D. 3 : 1 E. 4 : 1 The OA is B. Why is B? Shouldn't it be A? I got confused. ### GMAT/MBA Expert Legendary Member Joined 14 Jan 2015 Posted: 2666 messages Followed by: 125 members Upvotes: 1153 GMAT Score: 770 Top Reply VJesus12 wrote: If the number of red marbles is three times the number of green marbles in a bowl of marbles with only two colors of marbles, what is the ratio of the green marbles to all the marbles? A. 1 : 3 B. 1 : 4 C. 3 : 4 D. 3 : 1 E. 4 : 1 The OA is B. Why is B? Shouldn't it be A? I got confused. If there are 3 times as many red marbles as green marbles, then we can designate the red marbles as 3x and the green marbles as x. Red marbles: 3x Green marbles: x Total: 4x Ratio of Green: Total = x:4x = 1:4.. The answer is B ('A' would be the ratio of Green:Red not Green:Total) _________________ Veritas Prep | GMAT Instructor Veritas Prep Reviews Save$100 off any live Veritas Prep GMAT Course

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