SOLUTION: 20 men can do a work in 12 dayS. How many men are needed to do this work in 15 days?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: 20 men can do a work in 12 dayS. How many men are needed to do this work in 15 days?      Log On


   



Question 921594: 20 men can do a work in 12 dayS. How many men are needed to do this work in 15 days?
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
Uniform Rates Rule for doing a job or task is RT=J; rate, time, job.
Let r be the rate of work for 1 man, and let n be the unknown number of men for the question.


highlight_green%2820r%2A12=n%2Ar%2A15%29