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

Algebra ->  Customizable Word Problem Solvers  -> Misc -> 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      Log On

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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) About Me  (Show Source):
You can put this solution on YOUR website!
Kerry 1/4
Sam 1/x
Kerry&Sam 1/3

highlight_green%281%2F4%2B1%2Fx=1%2F3%29

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