SOLUTION: A farmer milking his cows in cows in 2/3 of an hour, and his son can do the job in 1 hour. How long will it take them to milk the cow together?
Pleaswe provide a detailed explan
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Pleaswe provide a detailed explan
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Question 228210: A farmer milking his cows in cows in 2/3 of an hour, and his son can do the job in 1 hour. How long will it take them to milk the cow together?
Pleaswe provide a detailed explanantion of the steps to be taken in problems like this... Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! A farmer milking his cows in cows in 2/3 of an hour, and his son can do the job in 1 hour.
How long will it take them to milk the cow together?
:
Let t = time required when milking together
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Let the completed job = 1
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Each will do a fraction of the job, the two fractions add up to 1 + = 1
Using the rule, "invert the dividing fraction and multiply", we have: + t = 1
Multiply equation by 2
3t + 2t = 2
5t = 2
t = hr working together
:
:
Check solution on calc, using t = .4
.4/(2/3) + .4 = 1
