SOLUTION: Two printers can print 10000 pages in 3 hours. If they get a third printer and have 20,000 pages to print, how long will it take? (Assume all printers print at the same speed.)

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Question 999140: Two printers can print 10000 pages in 3 hours. If they get a third printer and have 20,000 pages
to print, how long will it take? (Assume all printers print at the same speed.)
Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
r, the rate of one printer;
t, the unknown time for three printers for the described job;
system%282r%2A3=10000%2C3r%2At=20000%29