SOLUTION: Kerry can stick 10 fences posts into the ground for 4 hours. Working with Sam, they can stick 10 fences posts into the ground in 3 hours. How long would it take Sam to stick 10 fen

Question 973891: Kerry can stick 10 fences posts into the ground for 4 hours. Working with Sam, they can stick 10 fences posts into the ground in 3 hours. How long would it take Sam to stick 10 fences posts into the ground?
Answer by josgarithmetic(39613) (Show Source): You can put this solution on YOUR website!
Kerry 1/4
Sam 1/x
Kerry&Sam 1/3

The numerator "1" means "one job" or "sticking ten fence-posts into the ground".
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