SOLUTION: a certain printer can do a printing job in 3 hours. With a second printer, the same job can be done in 2 hours. how long would it take the second printer to do the same job?

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Question 979435: a certain printer can do a printing job in 3 hours. With a second printer, the same job can be done in 2 hours. how long would it take the second printer to do the same job?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
First printer's rate,
R%5B1%5D%2A3=100
R%5B1%5D=100%2F3
Second printer's rate,
R%5B2%5D%2A2=100
R%5B2%5D=100%2F2=50
Together,
%28R%5B1%5D%2BR%5B2%5D%29%2AT=100
T=100%2F%28R%5B1%5D%2BR%5B2%5D%29
T=100%2F%28100%2F3%2B50%29
T=100%2F%28100%2F3%2B150%2F3%29
T=300%2F%28250%29
T=6%2F5hr
1 hr 12 minutes.