Questions on Algebra: Proportions answered by real tutors!

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Question 150684: It takes 8 CPUs 24 hours to export 2.2 TB from a database. How much time will it take for 18 CPUs?: It takes 8 CPUs 24 hours to export 2.2 TB from a database. How much time will it take for 18 CPUs?
Answer by josmiceli(2029) About Me  (Show Source):
You can put this solution on YOUR website!
Half as many CPUs will take twice as long to do the same thing, so
4 CPUs take 48 hrs
2 CPUs take 96 hrs
1 cpu takes 192 hrs
18 CPUs will take 1/18 of this time
(1/18)*192 = 10.667 hrs
It will take 10 hrs 40 min for 18 CPUs
to export 2.2 TB