SOLUTION: If Soc can paint 100 easter eggs in 165 minutes and Ngu can paint 100 easter eggs in 205 minutes and Fawn can paint 100 easter eggs in 120 minutes how long will it take for the thr

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Question 350020: If Soc can paint 100 easter eggs in 165 minutes and Ngu can paint 100 easter eggs in 205 minutes and Fawn can paint 100 easter eggs in 120 minutes how long will it take for the three of them working together to paint 100 easter eggs ?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Soc can paint 100 easter eggs in 165 minutes
1/165 of the job he does in 1 minute
Ngu can paint 100 easter eggs in 205 minutes
1/205 of the job in 1 minute
Fawn can paint 100 easter eggs in 120 minutes
1/120 of the job in 1 minute
...
Together they will do 1/165 + 1/205 + 1/120 of the job in 1 minute
0.019 of the job in 1 minute.
..
so for total job they will take 1/0.019 minutes
51.88 minutes