SOLUTION: It takes 3 painters 4 hours to paint 1 classroom. How many hours does it take 1 painter to paint 2 classrooms of the same size as the first one? Assume all painters work at the sam

Algebra ->  Rate-of-work-word-problems -> SOLUTION: It takes 3 painters 4 hours to paint 1 classroom. How many hours does it take 1 painter to paint 2 classrooms of the same size as the first one? Assume all painters work at the sam      Log On


   

Question 555216: It takes 3 painters 4 hours to paint 1 classroom. How many hours does it take 1 painter to paint 2 classrooms of the same size as the first one? Assume all painters work at the same rate for the full time.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
It takes 3 painters 4 hours to paint 1 classroom.
How many hours does it take 1 painter to paint 2 classrooms of the same size as the first one?
Assume all painters work at the same rate for the full time.
:
Find how many man-hrs required to paint 1 class-room
3 * 4 = 12 man-hrs to paint one classroom
:
"How many hours does it take 1 painter to paint 2 classrooms of the same size as the first one?
:
let h = no. of hrs for 1 painter to do it
:
24 man-hrs to paint two classrooms, obviously.
:
1h = 24 hrs for one man to paint two classrooms