SOLUTION: It takes five men three and a half hours to paint a fence. How long, to the nearest second, would it take seven men to paint the same fence? You can assume that they will work

Algebra ->  Rate-of-work-word-problems -> SOLUTION: It takes five men three and a half hours to paint a fence. How long, to the nearest second, would it take seven men to paint the same fence? You can assume that they will work       Log On


   

Question 1123425: It takes five men three and a half hours to paint a fence.
How long, to the nearest second, would it take seven men to paint the same fence? You can assume that they will work at the same rate as the five men.
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
It would take one man (3.5hrs) * 5 = 17.5 hrs
So 7 men, working at the same rate, can do the job in 17.5hrs/7 = +highlight%28+matrix%281%2C4%2C+%22%22%2C%222.5%22%2C%22%22%2C%22+hrs%22%29%29+

To find the number of seconds, multiply 2.5hrs x (3600 sec/hr). You can do that calculation.