SOLUTION: If it took five boys eight weeks to build a boat how long will it take 12boys working at the same rate

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Question 1020406: If it took five boys eight weeks to build a boat how long will it take 12boys working at the same rate
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
Uniform work rates, RT=W relates the rate, time, amount of work, or here, amount of boats. Each boy may have one-boy rate of r and n boys have the combined rate of nr.

5r%2A8=1=12r%2At using t for the unknown number of weeks to build this one boat.