So far it has taken 6 workers 3.2 days to install 10 poles. How long will it take those workers to install 1 pole?

Question

I need to know this word problem for college algebra. I go to Metropaulitan Community College Buisness and Technology school.

Answer 1

One-tenth of the work requires one-tenth of the time.

(0.1)(3.2) = 0.32 days

Answer 2

Brett,

 

If we assume the rate of installation is constant no matter how many poles there are, then you can set up a simple proportion like this:

 

3.2days/10poles = xdays/1pole

 

Solve by cross multiplying:

 

10x = 3.2

 

x = 3.2/10 = .32 days