SOLUTION: If 9 workers can complete 12 chairs in 3 days, how long will it take 4 workers to complete 15 similar chairs?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: If 9 workers can complete 12 chairs in 3 days, how long will it take 4 workers to complete 15 similar chairs?       Log On


   

Question 1064276: If 9 workers can complete 12 chairs in 3 days, how long will it take 4 workers to complete 15 similar chairs?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Constant Rates Work problem.
RT=W relates workrate R, time T, amount of work W.

If one worker has rate of r, then n number of these workers as a group together have the rate of n%2Ar.


system%2819r%2A3=12%2C4%2Ar%2At=15%29

Solve for r.
Solve for t.

Answer by MathTherapy(10551) About Me  (Show Source):
You can put this solution on YOUR website!

If 9 workers can complete 12 chairs in 3 days, how long will it take 4 workers to complete 15 similar chairs?
Correct answer: 4 can complete 15 chairs in: highlight_green%28matrix%281%2C4%2C+8%267%2F16%2C+or%2C+8.4375%2C+days%29%29