SOLUTION: Thomas can do a job in 4 hours. Julia can do the same job in 6 hours. How many hours will it take the two of them to do the job if they both work together?
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-> SOLUTION: Thomas can do a job in 4 hours. Julia can do the same job in 6 hours. How many hours will it take the two of them to do the job if they both work together?
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Question 42125: Thomas can do a job in 4 hours. Julia can do the same job in 6 hours. How many hours will it take the two of them to do the job if they both work together? Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! The formula is
t/A + t/B = 1
so we get
t/4 + t/6 = 1
multiply by 24 and solve for t, we get
6t + 4t = 24
10t = 24
t = 2.4 hours
