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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 ## A printer can print 15 pages an hour. How many pages can... tagged by: swerve ##### This topic has 2 expert replies and 0 member replies ### Top Member ## A printer can print 15 pages an hour. How many pages can... A printer can print 15 pages an hour. How many pages can three printers print in 12 minutes at the same rate? A. 3 B. 4 C. 6 D. 8 E. 9 The OA is E. If a printer can print 15 pages an hour, then it can print 15/60 = 1/4 pages per minute, right? A printer in 12 minutes can print 12*1/4 = 3 pages. If three printers work at the same rate can print 3*3 = 9 pages in 12 minutes, right? Please, can any expert explain another way to solve this PS question for me? Thanks. ### GMAT/MBA Expert Elite Legendary Member Joined 23 Jun 2013 Posted: 9942 messages Followed by: 492 members Upvotes: 2867 GMAT Score: 800 Hi swerve, We're told that a printer can print 15 pages an HOUR. We're asked for the number of pages that three printers can print in 12 MINUTES at the same rate. This is a rate question that requires some 'unit conversion'; you can do the math in several different ways though. To start, since 1 printer can print 15 pages in 1 HOUR, then 3 printers would print a total of 45 pages in 1 hour. While 12 minutes might seem like a 'strange' number, an hour = 60 minutes, so 12 minutes would be exactly 12/60 = 1/5 of an hour. Since the three printers print 45 total pages in 1 hour, they would print 45/5 = 9 pages total in 12 minutes. Final Answer: E GMAT assassins aren't born, they're made, Rich _________________ Contact Rich at Rich.C@empowergmat.com ### GMAT/MBA Expert GMAT Instructor Joined 25 Apr 2015 Posted: 1776 messages Followed by: 14 members Upvotes: 43 swerve wrote: A printer can print 15 pages an hour. How many pages can three printers print in 12 minutes at the same rate? A. 3 B. 4 C. 6 D. 8 E. 9 The rate of 3 printers is 45 pages per hour, and, since 12 minutes = 1/5 of an hour, the 3 printers can print 45 x 1/5 = 9 pages in 12 minutes. Answer: E _________________ Scott Woodbury-Stewart Founder and CEO • FREE GMAT Exam Know how you'd score today for$0

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