SOLUTION: A father and son are working together to paint a picket fence. The father can paint a board in 0.04 hours, while the son takes 0.05 hours for each board. What is the combined rat

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Question 195787: A father and son are working together to paint a picket fence. The father can paint a board in 0.04 hours, while the son takes 0.05 hours for each board. What is the combined rate in boards/hours for the father and son team to paint the fence?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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A father and son are working together to paint a picket fence. The father can paint a board in 0.04 hours, while the son takes 0.05 hours for each board. What is the combined rate in boards/hours for the father and son team to paint the fence?
:
Find the rate; boards per hour for each:
1%2F.04 = 25
1%2F.05 = 20
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total: 45 boards per hr