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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 An incredible punch is composed of buttermilk... tagged by: swerve This topic has 2 expert replies and 0 member replies Top Member An incredible punch is composed of buttermilk... An incredible punch is composed of buttermilk, orange juice, and brandy. How many pints of orange juice are required to make 7 1/2 gallons of punch containing twice as much buttermilk as orange juice and three times as much orange juice as brandy? (1 gallon = 8 pints). A. 16 B. 18 C. 20 D. 22 E. 24 The OA is B. Please, can any expert explain this PS question for me? I tried to solve it but I can't get the correct answer. I need your help. Thanks. GMAT/MBA Expert Legendary Member Joined 14 Jan 2015 Posted: 2667 messages Followed by: 122 members Upvotes: 1153 GMAT Score: 770 swerve wrote: An incredible punch is composed of buttermilk, orange juice, and brandy. How many pints of orange juice are required to make 7 1/2 gallons of punch containing twice as much buttermilk as orange juice and three times as much orange juice as brandy? (1 gallon = 8 pints). A. 16 B. 18 C. 20 D. 22 E. 24 The OA is B. Please, can any expert explain this PS question for me? I tried to solve it but I can't get the correct answer. I need your help. Thanks. Call the Brandy amount 'B.' If there's three times as much orange juice, there'd be '3B' gallons. And if there were twice as much buttermilk as orange juice, there'd be 6B gallons of bulltermilk. To summarize: Brandy: B Orange Juice: 3B Buttermilk: 6B Total: 10B We know this should sum to 7.5 gallons of punch, so 10B = 7.5 --> B = .75 = 3/4 Total gallons of orange juice: 3B = 3(3/4) = 9/4 9/4 gallons = 9/4 * 8 = 18 pints. The answer is B _________________ Veritas Prep | GMAT Instructor Veritas Prep Reviews Save$100 off any live Veritas Prep GMAT Course

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swerve wrote:
An incredible punch is composed of buttermilk, orange juice, and brandy. How many pints of orange juice are required to make 7 1/2 gallons of punch containing twice as much buttermilk as orange juice and three times as much orange juice as brandy? (1 gallon = 8 pints).

A. 16
B. 18
C. 20
D. 22
E. 24
We need to make 7Â½ gallons of punch, or 7Â½ x 8 = 60 pints of punch. We can let x = the number of pints of brandy needed; thus, 3x = the number of pints of orange juice and 2(3x) = 6x = the number of pints of buttermilk. We can create the following equation:

6x + 3x + x = 60

10x = 60

x = 6

Thus, we need 3(6) = 18 pints of orange juice.

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Jeffrey Miller
jeff@targettestprep.com

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